----------------------------- OMB APPROVAL ----------------------------- OMB Number: 3235-0145 Expires: October 31, 2002 Estimated average burden hours per response.....14.90 ----------------------------- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. 1)* SUPPORT.COM, INC. --------------------------------------------------------- (Name of Issuer) Common Stock, par value $.0001 per share -------------------------------------------------------------------------- (Title of Class of Securities) 868587 10 6 --------------------------------------------------- (CUSIP Number) December 31, 2001 ----------------- (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ ] Rule 13d-1(b) [ ] Rule 13d-1(c) [X] Rule 13d-1(d) *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). POTENTIAL PERSONS WHO ARE TO RESPOND TO THE COLLECTION OF INFORMATION CONTAINED IN THIS FORM ARE NOT REQUIRED TO RESPOND UNLESS THE FORM DISPLAYS A CURRENTLY VALID OMB CONTROL NUMBER. SEC 1745 (3-98) Page 1 of 17 pages ---------------------- ---------------------- CUSIP NO. 868587 10 6 13G ---------------------- ---------------------- ------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO(S). OF ABOVE PERSON(S) (ENTITIES ONLY) SOFTBANK Technology Ventures IV L.P. ("SBTV IV") ------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) (b) X ------------------------------------------------------------------------------- 3 SEC USE ONLY ------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY 3,099,271 OWNED BY ------------------------------------------------------ EACH 6 SHARED VOTING POWER REPORTING PERSON -0- WITH: ------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 3,099,271 ------------------------------------------------------ 8 SHARED DISPOSITIVE POWER -0- ------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,099,271 ------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 9.9% ------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN ------------------------------------------------------------------------------- Page 2 of 17 pages ---------------------- ---------------------- CUSIP NO. 868587 10 6 13G ---------------------- ---------------------- ------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO(S). OF ABOVE PERSON(S) (ENTITIES ONLY) SOFTBANK Technology Advisors Fund L.P. ("STAF") ------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) (b) X ------------------------------------------------------------------------------- 3 SEC USE ONLY ------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY 62,568 OWNED BY ------------------------------------------------------ EACH 6 SHARED VOTING POWER REPORTING PERSON -0- WITH: ------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 62,568 ------------------------------------------------------ 8 SHARED DISPOSITIVE POWER -0- ------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 62,568 ------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.2% ------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN ------------------------------------------------------------------------------- Page 3 of 17 pages ---------------------- ---------------------- CUSIP NO. 868587 10 6 13G ---------------------- ---------------------- ------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO(S). OF ABOVE PERSON(S) (ENTITIES ONLY) STV IV LLC ------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) (b) X ------------------------------------------------------------------------------- 3 SEC USE ONLY ------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware ------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY 3,161,839 OWNED BY ------------------------------------------------------ EACH 6 SHARED VOTING POWER REPORTING PERSON -0- WITH: ------------------------------------------------------ 7 SOLE DISPOSITIVE POWER 3,161,839 ------------------------------------------------------ 8 SHARED DISPOSITIVE POWER -0- ------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,161,839 ------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 10.1% ------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* CO ------------------------------------------------------------------------------- Page 4 of 17 pages ---------------------- ---------------------- CUSIP NO. 868587 10 6 13G ---------------------- ---------------------- ------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO(S). OF ABOVE PERSON(S) (ENTITIES ONLY) Gary E. Rieschel ------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) (b) X ------------------------------------------------------------------------------- 3 SEC USE ONLY ------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY -0- OWNED BY ------------------------------------------------------ EACH 6 SHARED VOTING POWER REPORTING PERSON 3,161,839 WITH: ------------------------------------------------------ 7 SOLE DISPOSITIVE POWER -0- ------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 3,161,839 ------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,161,839 ------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 10.1% ------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ------------------------------------------------------------------------------- Page 5 of 17 pages ---------------------- ---------------------- CUSIP NO. 868587 10 6 13G ---------------------- ---------------------- ------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO(S). OF ABOVE PERSON(S) (ENTITIES ONLY) Charles E. Lax ------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) (b) X ------------------------------------------------------------------------------- 3 SEC USE ONLY ------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY -0- OWNED BY ------------------------------------------------------ EACH 6 SHARED VOTING POWER REPORTING PERSON 3,161,839 WITH: ------------------------------------------------------ 7 SOLE DISPOSITIVE POWER -0- ------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 3,161,839 ------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,161,839 ------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 10.1% ------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ------------------------------------------------------------------------------- Page 6 of 17 pages ---------------------- ---------------------- CUSIP NO. 868587 10 6 13G ---------------------- ---------------------- ------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO(S). OF ABOVE PERSON(S) (ENTITIES ONLY) Bradley A. Feld ------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) (b) X ------------------------------------------------------------------------------- 3 SEC USE ONLY ------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY -0- OWNED BY ------------------------------------------------------ EACH 6 SHARED VOTING POWER REPORTING PERSON 3,161,839 WITH: ------------------------------------------------------ 7 SOLE DISPOSITIVE POWER -0- ------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 3,161,839 ------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,161,839 ------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 10.1% ------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ------------------------------------------------------------------------------- Page 7 of 17 pages ---------------------- ---------------------- CUSIP NO. 868587 10 6 13G ---------------------- ---------------------- ------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO(S). OF ABOVE PERSON(S) (ENTITIES ONLY) Matthew A. Ocko ------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) (b) X ------------------------------------------------------------------------------- 3 SEC USE ONLY ------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY -0- OWNED BY ------------------------------------------------------ EACH 6 SHARED VOTING POWER REPORTING PERSON 3,161,839 WITH: ------------------------------------------------------ 7 SOLE DISPOSITIVE POWER -0- ------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 3,161,839 ------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,161,839 ------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 10.1% ------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ------------------------------------------------------------------------------- Page 8 of 17 pages ---------------------- ---------------------- CUSIP NO. 868587 10 6 13G ---------------------- ---------------------- ------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO(S). OF ABOVE PERSON(S) (ENTITIES ONLY) E. Scott Russell ------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) (b) X ------------------------------------------------------------------------------- 3 SEC USE ONLY ------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY -0- OWNED BY ------------------------------------------------------ EACH 6 SHARED VOTING POWER REPORTING PERSON 3,161,839 WITH: ------------------------------------------------------ 7 SOLE DISPOSITIVE POWER -0- ------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 3,161,839 ------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,161,839 ------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 10.1% ------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ------------------------------------------------------------------------------- Page 9 of 17 pages ---------------------- ---------------------- CUSIP NO. 868587 10 6 13G ---------------------- ---------------------- ------------------------------------------------------------------------------- NAME OF REPORTING PERSON 1 I.R.S. IDENTIFICATION NO(S). OF ABOVE PERSON(S) (ENTITIES ONLY) D. Rex Golding ------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) (b) X ------------------------------------------------------------------------------- 3 SEC USE ONLY ------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY -0- OWNED BY ------------------------------------------------------ EACH 6 SHARED VOTING POWER REPORTING PERSON 3,161,839 WITH: ------------------------------------------------------ 7 SOLE DISPOSITIVE POWER -0- ------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 3,161,839 ------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,161,839 ------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 10.1% ------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ------------------------------------------------------------------------------- Page 10 of 17 pages ---------------------- ---------------------- CUSIP NO. 868587 10 6 13G ---------------------- ---------------------- ------------------------------------------------------------------------------- NAME OF REPORTING PERSON 1 I.R.S. IDENTIFICATION NO(S). OF ABOVE PERSON(S) (ENTITIES ONLY) Jo Ann Heidi Roizen, Trustee of the Mohler/Roizen Revocable Trust ------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) (b) X ------------------------------------------------------------------------------- 3 SEC USE ONLY ------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION United States of America ------------------------------------------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES BENEFICIALLY -0- OWNED BY ------------------------------------------------------ EACH 6 SHARED VOTING POWER REPORTING PERSON 3,161,839 WITH: ------------------------------------------------------ 7 SOLE DISPOSITIVE POWER -0- ------------------------------------------------------ 8 SHARED DISPOSITIVE POWER 3,161,839 ------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,161,839 ------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [ ] ------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 10.1% ------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IN ------------------------------------------------------------------------------- Page 11 of 17 pages ITEM 1. (a) NAME OF ISSUER: Support.com, Inc. (b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES: 575 Broadway, Redwood City, CA 94063 ITEM 2. (a) NAME OF PERSON FILING: SOFTBANK Technology Ventures IV L.P. ("SBTV IV") SOFTBANK Technology Advisors Fund L.P. ("STAF") STV IV LLC Gary E. Rieschel ("GER") Charles E. Lax ("CEL") Bradley A. Feld ("BAF") Matthew A. Ocko ("MAO") E. Scott Russell ("ESR") D. Rex Golding ("DRG") Jo Ann Heidi Roizen, Trustee of the Mohler/Roizen Revocable Trust ("JHR") (b) ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE: 200 West Evelyn Avenue, Suite 200 Mountain View, CA 94041 (c) CITIZENSHIP: Entities: SBTV IV - Delaware STAF - Delaware STV IV LLC - Delaware Individuals: GER - United States CEL - United States BAF - United States MAO - United States ESR - United States DRG - United States JHR - United States (d) TITLE OF CLASS OF SECURITIES: Common Stock, par value $.0001 per share (e) CUSIP NUMBER: 868587 10 6 ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO SECTIONS 240.13d-1(b), OR 240.13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A: (a) [ ] Broker or Dealer registered under Section 15 of the Act (15 U.S.C. 78o); (b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c); (c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c); (d) [ ] An investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8); (e) [ ] An investment adviser in accordance with Section 240.13d-1(b)(1)(ii)(E); (f) [ ] An employee benefit plan or endowment fund in accordance with Section 240.13d-1(b)(1)(ii)(F); (g) [ ] A parent holding company or control person in accordance with Section 240.13d-1(b)(ii)(G); (h) [ ] A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813); (i) [ ] A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3); (j) [ ] Group, in accordance with Section 240.13d-1(b)(1)(ii)(J) Page 12 of 17 pages ITEM 4 OWNERSHIP. ------------------- ---------- -------- ------------- ---------- ---------- --------- ---------- ---------- ---------- ---------- SBTV IV STAF STV IV LLC GER CEL BAF MAO ESR DRG JHR ------------------- ---------- -------- ------------- ---------- ---------- --------- ---------- ---------- ---------- ---------- (a) Beneficial Ownership 3,099,271 62,568 3,161,839 3,161,839 3,161,839 3,161,839 3,161,839 3,161,839 3,161,839 3,161,839 ------------------- ---------- -------- ------------- ---------- ---------- --------- ---------- ---------- ---------- ---------- (b) Percentage of Class 9.9% 0.2% 10.1% 10.1% 10.1% 10.1% 10.1% 10.1% 10.1% 10.1% ------------------- ---------- -------- ------------- ---------- ---------- --------- ---------- ---------- ---------- ---------- (c) Sole Voting Power 3,099,271 62,568 3,161,839 -0- -0- -0- -0- -0- -0- -0- ------------------- ---------- -------- ------------- ---------- ---------- --------- ---------- ---------- ---------- ---------- Shared Voting Power -0- -0- -0- 3,161,839 3,161,839 3,161,839 3,161,839 3,161,839 3,161,839 3,161,839 ------------------- ---------- -------- ------------- ---------- ---------- --------- ---------- ---------- ---------- ---------- Sole Dispositive Power 3,099,271 62,568 3,161,839 -0- -0- -0- -0- -0- -0- -0- ------------------- ---------- -------- ------------- ---------- ---------- --------- ---------- ---------- ---------- ---------- Shared Dispositive Power -0- -0- -0- 3,161,839 3,161,839 3,161,839 3,161,839 3,161,839 3,161,839 3,161,839 ------------------- ---------- -------- ------------- ---------- ---------- --------- ---------- ---------- ---------- ---------- ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of class of securities, check the following: [ ] ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON Not applicable. ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY. Not applicable. ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP Not applicable. ITEM 9. NOTICE OF DISSOLUTION OF GROUP Not applicable. Page 13 of 17 pages ITEM 10. CERTIFICATION After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. Date: February 13, 2002 SOFTBANK TECHNOLOGY VENTURES IV L.P. By: STV IV LLC its general partner By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Chief Operating Officer SOFTBANK TECHNOLOGY ADVISORS FUND L.P. By: STV IV LLC its general partner By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Chief Operating Officer STV IV LLC By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Chief Operating Officer GARY E. RIESCHEL By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Attorney-in-Fact* CHARLES E. LAX By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Attorney-in-Fact* BRADLEY A. FELD By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Attorney-in-Fact* Page 14 of 17 pages MATTHEW A. OCKO By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Attorney-in-Fact* E. SCOTT RUSSELL By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Attorney-in-Fact* D. REX GOLDING By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Attorney-in-Fact* JO ANN HEIDI ROIZEN, TRUSTEE OF THE MOHLER/ROIZEN REVOCABLE TRUST By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Attorney-in-Fact* * Power of attorney granted pursuant to general authorization letters filed with the Commission via certified mail dated March 16, 2001. Page 15 of 17 pages Exhibit A AGREEMENT OF JOINT FILING We, the undersigned, hereby express our agreement that the attached Schedule 13G is filed on behalf of us. Date: February 13, 2002 SOFTBANK TECHNOLOGY VENTURES IV L.P. By: STV IV LLC its general partner By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Chief Operating Officer SOFTBANK TECHNOLOGY ADVISORS FUND L.P. By: STV IV LLC its general partner By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Chief Operating Officer STV IV LLC By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Chief Operating Officer GARY E. RIESCHEL By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Attorney-in-Fact* CHARLES E. LAX By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Attorney-in-Fact* BRADLEY A. FELD By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Attorney-in-Fact* MATTHEW A. OCKO By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Attorney-in-Fact* Page 16 of 17 pages E. SCOTT RUSSELL By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Attorney-in-Fact* D. REX GOLDING By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Attorney-in-Fact* JO ANN HEIDI ROIZEN, TRUSTEE OF THE MOHLER/ROIZEN REVOCABLE TRUST By: /s/ Greg. R. Prow ------------------------------------- Name: Greg R. Prow Title: Attorney-in-Fact* * Power of attorney granted pursuant to general authorization letters filed with the Commission via certified mail dated March 16, 2001. Page 17 of 17 pages