EX-99.1 2 0002.txt JOINT FILING AGREEMENT EXHIBIT 1 JOINT FILING AGREEMENT ---------------------- Pursuant to Rule 13d-1(k)(1)(iii), we the undersigned agree that the Schedule 13G, to which this Joint Filing Agreement is attached as Exhibit 1, is filed on behalf of each of us. Date: February 13, 2001 MAYFIELD VIII A California Limited Partnership By: Mayfield VIII Management, L.L.C. Its General Partner By: /s/ James T. Beck ------------------------------------- James T. Beck, Authorized Signatory MAYFIELD VIII MANAGEMENT, L.L.C. By: /s/ James T. Beck ------------------------------------- James T. Beck, Authorized Signatory MAYFIELD ASSOCIATES FUND II A California Limited Partnership By: /s/ James T. Beck ------------------------------------- James T. Beck, Authorized Signatory YOGEN K. DALAL By: /s/ James T. Beck ------------------------------------- James T. Beck, Attorney In Fact F. GIBSON MYERS, JR. By: /s/ James T. Beck ------------------------------------- James T. Beck, Attorney In Fact KEVIN A. FONG By: /s/ James T. Beck ------------------------------------- James T. Beck, Attorney In Fact Page 19 of 38 pages. WILLIAM D. UNGER By: /s/ James T. Beck ------------------------------------- James T. Beck, Attorney In Fact WENDELL G. VAN AUKEN, III By: /s/ James T. Beck ------------------------------------- James T. Beck, Attorney In Fact MICHAEL J. LEVINTHAL By: /s/ James T. Beck ------------------------------------- James T. Beck, Attorney In Fact A. GRANT HEIDRICH, III By: /s/ James T. Beck ------------------------------------- James T. Beck, Attorney In Fact WENDE S. HUTTON By: /s/ James T. Beck ------------------------------------- James T. Beck, Attorney In Fact RUSSELL C. HIRSCH By: /s/ James T. Beck ------------------------------------- James T. Beck, Attorney In Fact Page 20 of 38 pages.