I installed the 1.2 patch today. Now every time I change the resolution and resume game, there is a red watery layer on the screen. I can see models etc but they covered with the texture. It's a definite bug and makes the game unplayable. Any Ideas?

http://img339.imageshack.us/i/erorn.jpg/

it happend to me too, only in green. it returned to normal the next match.
never had a problem with my GPU or anything.