system hangs on shutdown

[mgcross]

This started happening after I installed MS Wireless desktop 1.1

This system will not shutdown unless I do a crtl alt bckspc, then it shuts down normally

ProblemType: Crash
Architecture: i386
CrashCounter: 1
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/bin/nautilus
NonfreeKernelModules: nvidia
Package: nautilus 1:2.22.5.1-0ubuntu1
ProcAttrCurrent: unconfined
ProcCmdline: nautilus --no-default-window --sm-client-id default2
ProcEnviron:
 SHELL=/bin/bash
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
Signal: 11
SourcePackage: nautilus
StacktraceTop:
 gconf_client_remove_dir () from /usr/lib/libgconf-2.so.4
 ?? ()
 g_object_unref () from /usr/lib/libgobject-2.0.so.0
 ?? ()
 g_object_unref () from /usr/lib/libgobject-2.0.so.0
Title: nautilus crashed with SIGSEGV in gconf_client_remove_dir()
Uname: Linux 2.6.24-22-rt i686
UserGroups: adm admin audio cdrom dialout dip floppy fuse lpadmin plugdev sambashare video