screensaver crash when I move the mouse

[neferkahor]

Binary package hint: gnome-screensaver

Ubuntu 8.04 LTS Beta
gnome-screensaver 2.21.6-0ubuntu3
When I move the mouse for return the desktop I got a crash window of gnome-screensaver I close it and the system continue to run

ProblemType: Crash
Architecture: i386
CrashCounter: 1
Date: Sat Mar 22 11:41:19 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/lib/gnome-screensaver/gnome-screensaver-gl-helper
Package: gnome-screensaver 2.21.6-0ubuntu3
PackageArchitecture: i386
ProcCmdline: /usr/lib/gnome-screensaver/gnome-screensaver-gl-helper
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/lib/gnome-screensaver/gnome-screensaver:/usr/lib/xscreensaver:/usr/lib/xscreensaver
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: gnome-screensaver
StacktraceTop:
 ?? () from /lib/ld-linux.so.2
 ?? ()
 ?? () from /lib/ld-linux.so.2
 ?? ()
 ?? ()
Title: gnome-screensaver-gl-helper crashed with SIGSEGV
Uname: Linux 2.6.24-12-generic i686
UserGroups: adm admin audio cdrom dialout dip floppy fuse lpadmin plugdev video