How can I define custom resolutions and refresh rates with the ATI drivers? I would like to use the 5.11 Cats, but I have to use the 5.10 Omegas because they support 1400X1050@75Hz, and the official ones don't. It was super easy to do with the nVidia ones, but I can't figure out how to do it with ATI's. Any assistance is appreciated. 