On Thu, 29 Sep 2011 20:18:34 +0200 Jon Ingason wrote:
My question is, is someone having same problem? How can I solve this?
Sounds like this bug:
https://bugzilla.redhat.com/show_bug.cgi?id=708529
Are you running with all the compiz screen effects turned on? Try turning them off and see if the corruption goes away.