I would like to upgrade my display to a 19" or 20" LCD, preferably wide format. The native resolutions for these (1440x900 or 1680x1050) are not indicated in the specs for my ATI Radeon 7200 64MB adapter, although it can display up to 2048x1536. Is the 7200 compatible with such LCDs? Are the available resolutions defined by the hardware or by the driver? Any help will be greatly appreciated.