Nautilus randomly crashes (mostly when accessing samba share)

Nautilus randomly crashes when clicking on directories.

I found that in kern.log :
"Oct 11 00:17:55 julmx-laptop kernel: [ 162.542899] nautilus[1636]: segfault at 8 ip 01446f99 sp bfc244e0 error 4 in libgconf-2.so.4.1.5[142e000+2c000]"

I hope it can help you. You will find a more detailed log attachement.
I'm sorry, I do not speak English well

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: nautilus 1:3.2.0-0ubuntu5
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu3
Architecture: i386
Date: Tue Oct 11 00:28:44 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcEnviron:
 PATH=(custom, user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: nautilus
UpgradeStatus: Upgraded to oneiric on 2011-10-07 (3 days ago)