when i open add/remove aplications at the end,when loading universal acces,it freezes and i cant turn it off

[colo]

Binary package hint: gnome-control-center

 ubuntu 9.10
 Unable to locate package packagename

ProblemType: Crash
Architecture: i386
Date: Tue Aug 18 19:08:48 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/gnome-about-me
NonfreeKernelModules: nvidia
Package: gnome-control-center 1:2.27.5-0ubuntu1
ProcCmdline: /usr/bin/gnome-about-me
ProcEnviron:
 LANG=en_US.UTF-8
 LANGUAGE=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-6.25-generic
SegvAnalysis:
 Segfault happened at: 0x801f1f <e_contact_set+47>: cmp (%edx),%eax
 PC (0x00801f1f) ok
 source "(%edx)" (0x00006e6f) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-control-center
StacktraceTop:
 e_contact_set () from /usr/lib/libebook-1.2.so.9
 ?? ()
 ?? () from /usr/lib/libgtk-x11-2.0.so.0
 g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
 ?? () from /usr/lib/libgobject-2.0.so.0
Title: gnome-about-me crashed with SIGSEGV in e_contact_set()
Uname: Linux 2.6.31-6-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare