I read the pinned post "Graphics gone wild" but it did not help me. I have windows 7 64 bit with a radeon 4870 video card. I can not find any program to turn on geometry Instancing. The problem occured randomly about two hours after playing a perfectly normal match.
Here's what my screen looks like:
http://virtualeclipse.net/error1.png
http://virtualeclipse.net/error2.png
I've been googling looking for a solution the past two days, any help would be appreciated.