Re: AC cos I'm ashamed of saying something nice about Vista
The problem with graphics cards and Vista, was that Microsoft were trying (as with UAC) to undo their sins of the past, and move on to a sensible display driver model (WDDM).
Unfortunately despite several years of warning, hardware vendors were slow to adopt it, leading to hardware that either ran slowly, or not at all. These days it's standard and works fine.
That's Vista in a nutshell really. It was Microsoft's attempt to fix various problems with previous versions of Windows, and the only way to do that was by making some things incompatible. Win 7 was really only a very minor upgrade (it probably could have been called Vista SP3), but the extra years gave hardware manufacturers and developers time to move to a more modern OS design, and there were many less problems when it launched.