[Wrathlon]

Yes but XP and Vista use different drivers, one OS has nearly a decade of development time behind it, the other has barely a couple of years. nVidia's XP drivers might be great, but as I've found myself, their Vista drivers are really shoddy.

For example: ATi has had the ability to force resolutions not officially supported by the monitors EDID since forever under vista.

nVidia on the other hand - they only recently allowed that in their drivers and even then for it to detect the resolution in the dropdown list in games, I still need to tear out the EDID pins from my DVI to VGA Adapters so windows cant detect anything, and then install custom monitor drivers created using rivatuner.