One of my raptor drives tanked, so I took this opportunity to do a clean install of Win7. Installed video drivers and found that I couldn't get anything above 40fps in Stormwind (settings maxed out). I should be seeing well above 130fps. After some tinkering I found that the shadow quality setting was the culprit. If I move the slider more than halfway, the fps just sinks. So I'm assuming this is a driver issue. I'm using 4870 X2.