gnome-screensaver-gl-helper crashed with SIGSEGV in exit()

Binary package hint: gnome-screensaver

Was not able to initiate a new session on the live cd. Used "ubuntu" (top right corner) -> New Session.

ProblemType: Crash
Architecture: i386
Date: Wed Oct 14 18:20:21 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/lib/gnome-screensaver/gnome-screensaver-gl-helper
LiveMediaBuild: Ubuntu 9.10 "Karmic Koala" - Beta i386 (20090930)
NonfreeKernelModules: nvidia
Package: gnome-screensaver 2.28.0-0ubuntu1
ProcCmdline: /usr/lib/gnome-screensaver/gnome-screensaver-gl-helper
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-11.36-generic
SegvAnalysis:
 Segfault happened at: 0xceff48: mov (%eax),%esi
 PC (0x00ceff48) ok
 source "(%eax)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%esi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-screensaver
StacktraceTop:
 ?? () from /usr/lib/libGL.so.1
 ?? () from /lib/tls/i686/cmov/libc.so.6
 exit () from /lib/tls/i686/cmov/libc.so.6
 __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
 ?? ()
Title: gnome-screensaver-gl-helper crashed with SIGSEGV in exit()
Uname: Linux 2.6.31-11-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare