JOINT FILING AGREEMENT

                                    EXHIBIT 1

                             JOINT FILING AGREEMENT

      We,  the  signatories  of the  Statement  on  Schedule  13D to which  this
Agreement is attached,  hereby agree that such  statement is, and any amendments
thereto filed by any of us will be, filed on behalf of each of us.

                              VECTOR CC HOLDINGS, L.L.C.
                              By:  Vector Capital Partners II, L.L.C.,
                                   its Managing Member

                              By: /s/ Xxxxxxxxx X. Xxxxxx
                                  ----------------------------------------------
                                  Name:  Xxxxxxxxx X. Xxxxxx
                                  Title:  Managing Member

                              VECTOR CAPITAL PARTNERS II, L.L.C.

                              By: /s/ Xxxxxxxxx X. Xxxxxx
                                  ----------------------------------------------
                                  Name:  Xxxxxxxxx X. Xxxxxx
                                  Title:  Managing Member

                              VECTOR CAPITAL II, L.P.
                              By: Vector Capital Partners II, L.L.C.,
                                  its General Partner

                              By: /s/ Xxxxxxxxx X. Xxxxxx
                                  ----------------------------------------------
                                  Name:  Xxxxxxxxx X. Xxxxxx
                                  Title:  Managing Member

                              VECTOR MEMBER FUND II, L.P.
                              By: Vector Capital Partners II, L.L.C.,
                                  its General Partner

                              By: /s/ Xxxxxxxxx X. Xxxxxx
                                  ------------------
                                  Name:  Xxxxxxxxx X. Xxxxxx
                                  Title:  Managing Member

                              VECTOR ENTREPRENEUR FUND II, L.P.
                              By: Vector Capital Partners II, L.L.C.,
                                  its General Partner

                              By: /s/ Xxxxxxxxx X. Xxxxxx
                                  ----------------------------------------------
                                  Name:  Xxxxxxxxx X. Xxxxxx
                                  Title: Managing Member



                                                          Title: Managing Member