Hello, I gave GeForce GTX 570 and 301.42 drivers on Windows 7 64 Bit. I have a weird issue with this drivers. For example I am starting my computer and launching a game and playing it without having a problem. And after that game I am starting other new game but that game's performance is really low and unplayable. After restarting my computer and playing that game performance is turning to normal. So second game that I start without restarting has unplayable performance and after restarting Windows it turns the normal. I don't have this problem until the 301.42 drivers. Anyone has the same problem as me? Thanks.