Las

I have the same problem. If i install and run the game, play for a while and then quit the game myself, there's no problem starting it again later. But if i play the game and it crashes (blue screen of death) i get the "bad serial number given in setup" message. So it would seem that the crash corrupts the game. os: xp gfx card: GeForce GTX 260 game: bought retail (not downloaded) lang: EU patch: 1.02