I hope the ATI users on the forum reply to you - but in case they don't, with nvidia, I go to their control panel (Catalyst in ATI) and set the display controls to default. Sometimes you have to increase the Gamma setting to brighten the screen; for nvidiia there is a Video section as well as a display section; the video section deals with the non-windows aspects of diaply (like DVD). So check that too.

thnx... i'll explore the control panel...