Thats true you have to be very cautious to find any difference between vista and XP very high quality. But this game is requesting so much resources to run in at least medium quality not talking about high quality. So it is pity it is only on PC I would love it on some of the console instead, because I have bought PS3 not long time ago and I am in need of some crazy games. And as I played the Demo of Crysis it is AWESOME!