Still having the issue. I've uninstalled my old drivers, cleaned with driver sweeper and installed ccc 12. Not a ton difference. It's a little better but it resizes randomly from full screen to a black border all the way around the screen.
Here's a video:http://www.youtube.com/watch?v=eWBlnPFP2hs
I was watching a DVD but it doesn't matter what I am doing, video, games, etc. Please tell me someone has a solution. I never had a problem on a previous install. My next option I guess is go back to older drivers.