EXHIBIT A
[ADDITIONAL SIGNATURE PAGE TO JOINT FILING AGREEMENT]
AGREEMENT REGARDING THE JOINT FILING OF SCHEDULE 13G
The undersigned hereby agree as follows:
(1) Each of them is individually eligible to use the Schedule 13G to
which this Exhibit is attached, and such Schedule 13G is filed on behalf of each
of them; and
(2) Each of them is responsible for the timely filing of such Schedule
13G and any amendments thereto, and for the completeness and accuracy of the
information concerning such person contained therein; but none of them is
responsible for the completeness or accuracy of the information concerning the
other persons making the filing, unless such person knows or has reason to
believe that such information is inaccurate.
Date: February 14, 2001
VECTOR LATER-STAGE EQUITY FUND II, L.P.
By: Vector Fund Management II, L.L.C.
Its: General Partner
By: Vector Asset Management, Inc.
Its: Managing Member
By: /s/ Xxxx Xxxxxx
------------------------------------
Xxxx Xxxxxx, Chief Financial Officer
VECTOR LATER-STAGE EQUITY FUND II (QP), L.P.
By: Vector Fund Management II, L.L.C.
Its: General Partner
By: Vector Asset Management, Inc.
Its: Managing Member
By: /s/ Xxxx Xxxxxx
------------------------------------
Xxxx Xxxxxx, Chief Financial Officer
VECTOR FUND MANAGEMENT II, L.L.C.
By: Vector Asset Management, Inc.
Its: Managing Member
By: /s/ Xxxx Xxxxxx
------------------------------------
Xxxx Xxxxxx, Chief Financial Officer
[ADDITIONAL SIGNATURE PAGE TO JOINT FILING AGREEMENT]
VECTOR FUND MANAGEMENT II, L.L.C.
By: Vector Asset Management, Inc.
Its: Managing Member
By: /s/ Xxxx Xxxxxx
------------------------------------
Xxxx Xxxxxx, Chief Financial Officer
