Background shifted to the right, uncovered area shows garbage

[Victor Costan]

I did a software update this afternoon, and after rebooting saw the attached screenshot. If I drag windows around, they leave trails in the area without a wallpaper, so it seems like there's no redrawing going on there.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome-session-bin 3.2.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 1.23-0ubuntu2
Architecture: amd64
Date: Thu Sep 29 22:16:37 2011
ExecutablePath: /usr/bin/gnome-session
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413)
SourcePackage: gnome-session
UpgradeStatus: Upgraded to oneiric on 2011-09-22 (7 days ago)
XsessionErrors:
 (vino-server:5548): EggSMClient-CRITICAL **: egg_sm_client_set_mode: assertion `global_client == NULL || global_client_mode == EGG_SM_CLIENT_MODE_DISABLED' failed
 (nautilus:5541): Gtk-CRITICAL **: gtk_action_set_visible: assertion `GTK_IS_ACTION (action)' failed
 (nautilus:5541): Gtk-CRITICAL **: gtk_action_set_visible: assertion `GTK_IS_ACTION (action)' failed

[Launchpad Janitor (janitor)]

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

[Adolfo Jayme Barrientos (fitojb)]

Thanks for reporting, this issue is a dupe of bug 862743, and was just fixed!