Homerdog your problem sounds like it is caused by your powersupply because I am not sure about the wattage. You have your cpu overclocked plus a power hungry graphics card. What is the amps on the 12v rails?
It's not my powersupply, I can play any other game including STALKER and Oblivion for hours and run dual prime as well as a video card stability test
for days and the 12V rails are rock solid according to speedfan. Just to be sure, I tried taking all of my overclocks off and it didn't help.
I tried rolling back to the last certified driver (162.22) but I still got the same problem. The screen goes black and nothing happens. I have found that if press Esc it sends me back to the desktop just like I never clicked on anything.
I've already played through the demo on my roommates 360 and loved it, but I'm holding off my purchase of the PC version until I'm sure that it'll work. Does this problem exist on the full version or just the demo?