New
#31
RAM - Test with Memtest86+
As you only have problems with that particular game, have you tried uninstalling an reinstalling it?
You might also consider a system restore, restoring to a date prior to your problem: System Restore
A hard drive check may be in order as well: WD Support / Downloads / SATA & SAS / WD VelociRaptor
I'd do the memtest first...