Nautilus core dumps on launch (oneiric)

[Franck]

In latest Oneiric, nautilus stopped to work here.
Clicking on the home forlder icon in unity launcher results in a window appearing and closing asap.
Running 'nautilus' from the shell gives:
franck@franck-VPCCW2S1E:~$ nautilus
Initializing nautilus-open-terminal extension
Initializing nautilus-gdu extension
** (nautilus:9336): DEBUG: SyncDaemon already running, initializing SyncdaemonDaemon object

(nautilus:9336): Gtk-CRITICAL **: gtk_action_set_visible: assertion `GTK_IS_ACTION (action)' failed

(nautilus:9336): Gtk-CRITICAL **: gtk_action_set_visible: assertion `GTK_IS_ACTION (action)' failed
Erreur de segmentation (core dumped)

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: nautilus 1:3.2.0-0ubuntu5
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
ApportVersion: 1.23-0ubuntu2
Architecture: amd64
Date: Tue Oct 4 08:58:25 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110901)
SourcePackage: nautilus
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.