gnome-screensaver-dialog crashed with SIGSEGV in g_type_create_instance()

[MD]

Binary package hint: gnome-screensaver

It did it on two completly different machines. Once the screensaver is activated, I can't get back to ubuntu. I can't have the popup to enter the password. Nothing happens and every key is useless. Ctrl+Alt+Backspace was my only option.

ProblemType: Crash
Architecture: i386
CrashCounter: 1
DistroRelease: Ubuntu 8.10
ExecutablePath: /usr/lib/gnome-screensaver/gnome-screensaver-dialog
Package: gnome-screensaver 2.24.0-0ubuntu2
ProcAttrCurrent: unconfined
ProcCmdline: /usr/lib/gnome-screensaver/gnome-screensaver-dialog --away-message= --enable-switch
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=fr_FR.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: gnome-screensaver
StacktraceTop:
 ?? () from /usr/lib/libgnomekbdui.so.3
 ?? () from /usr/lib/libgnomekbdui.so.3
 g_type_create_instance () from /usr/lib/libgobject-2.0.so.0
 ?? () from /usr/lib/libgobject-2.0.so.0
 g_object_newv () from /usr/lib/libgobject-2.0.so.0
Title: gnome-screensaver-dialog crashed with SIGSEGV in g_type_create_instance()
Uname: Linux 2.6.27-7-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare