Use ATI and Diamond DOS setup programs for higher graphics resolution

To access resolutions higher than 640x480 and to correctly initialize certain ATI and Diamond adapters, you must boot DOS and run the manufacturer-supplied programs according to the instructions for those programs. This applies to the ATI Ultra Pro, Ultra Plus, and Mach64 graphics adapters, and the Diamond SpeedStar Pro, Stealth 24, and Stealth Pro graphics adapters.