Oops, sorry it took me so long to post. I didn't see your reponse. When I purchased my videocard Nvidia 7800 the dealer had installed an 81.98 driver which they said was the newest one. It turns out that the newest driver had just come out a couple months later and this apparently has made all the difference. It is 91.31 and seems to have solved my crashing problems. So far, I've only had 2 error messages but only when I exit the game and only, after very prolonged periods of play time (i.e. excess of 8 hours). I love this game
