I've been having an on and off issue with crysis 2 lately. When I play, the system locks up, and on occaion throws out a 0x7a bsod. Regardless of the outcome, it usually ends with me having to run a boot repair off the repair console in order to get my computer booted. I've also had one instance where coming out of this error, all campaign stats were deleted.

I've run diagnositcs on my system, and have not yet found anything amiss that could explain this other then the game crashing it. Has anyone had similar experiences?

windows 7 pro - 64bit
AMD Athlon (tm) II X4 640 processor - 3.00 GHZ
4.00 gb ram
NVIDIA GeForce 9800 GT