BFG GTX280 OC DX10 crash problems plz help!

[xxpharoahxx]

recently upgraded to a BFG GTX280 OC, and all is well when gaming in Dx9, although when i even attempt to play crysis, crysis warhead, gears of war etc. in Dx10 when i launch the game all i see is a green screen, or the game with little green blocks and then each game crashes. I have tried 185.85 (current), 186.18, 190.38, 190.56 all to no avail. Do i have a bad card or is it just directx10? and if so please tell me how to fix this problem.