i upgraded my psu to 500 watts when i upgraded to axt1900 series however after uninstalling all ati drivers removing old card pluggin in new VT56702gb no video, i plugged another moniter into mb dvi out and installed software for new card. error message only says sucess but i cant locate amd drivers on hd. i have tried everything i can think of. this probably my 4th card upgrade and first problem. for now i reinstalled my xtx and work but really want to play call of pipryat. anybody?