SO it could be from overheating? I have an 8800GTX, and I have my graphics on medium low if i remember right. Maybe I'll turn my fans up when I play EiR. And yeah bringing up the tac map didn't help. What was weird was when I alt tabbed things looked fine.
I guess I'll check nvidea to see if any new drivers were released lately. Thanks for help =D
When you alt-tab the GPU stops processing most of the graphics so it begins to cool down, that's why you don't get any artifacting. Your OS doesn't need the GPU to render the desktop either.
Trust me, I had a lot of problems with heat a while back, which culminated with my gfx card blowing up. You better go clean out your heatsinks and fan, and if that still doesn't work, get ready to buy a new GPU.