Pruning the forum database.
and what video card is it?specs pleasealso driver loadedif by any chance is a intel video card, i remember a post where a small modification of xorg.conf fixed the error
I now get the same type of affects on my Lenovo V570 laptop(I5-2410M 4-core 64-bit cpu), 2nd Generation Core Processor Family Integrated Graphics Controller, 6GB mem.
Have you tried changing Styles inConfigure Your Desktop > Common Appearance & Behaviour > Application Appearance > Style
If Desktop Effects are used it might also be worth turning them off (and back on again) to see if that "refreshes" the desktop
Thankyou all for the help!