Suddenly most icons, buttons and backgrounds disappears

[Elvin Haci]

I use 11.10, i have serious bug in my OS. Sometimes(averagely one time in a day) most icons, buttons and backgrounds disappears in all system. I am sending two screenshots from my Chrome and System Monitor apps in attached document. It is strange, but this problem can not make any affect to some apps, ex. to Firefox. Some of affected apps: Chrome, Nautilus, System Monitor, Geany Editor and etc.
Only killing Gnome-session restores normal view.(killing that process causes logout-relogin)

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome-session 3.2.1-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.0.0-15.24-generic-pae 3.0.13
Uname: Linux 3.0.0-15-generic-pae i686
NonfreeKernelModules: wl
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Mon Dec 26 16:06:51 2011
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
PackageArchitecture: all
SourcePackage: gnome-session
UpgradeStatus: Upgraded to oneiric on 2011-10-14 (72 days ago)

[Elvin Haci (aktivhelp)]

Some screenshots in zip file: http://dl.dropbox.com/u/22319935/Downloads.zip

[dino99 (9d9)]

That version is no more supported