i just bought the eVGA 6800GT and i installed the 61.77 drivers and now i cant play Halo.gives me a message saying that Halo doesnt recognize the drivers and when i go to play the game it will show the logos and all but when it gets to the main screen the screen goes to a dark grey color and flickers a bit and wont ever go to the normal way...i dont know where to get the previous set of drivers, so if i installed those drivers i might not have any problems with Halo...its worth a shot at least..thnx in advance