Well, BF1942 ran for over an hour with no lock-ups, although I did notice a couple of times where it did stutter a bit. Call of Duty is another story, though. About 3 minutes max before a lock-up. D'oh! I'm hoping this is just a CoD thing, although somebody reportedly was able to run it no problem, so maybe a card swap is still in order.
Karl, after your card swap and/or the Bios update, did you still have the problems with CoD?