Boot Camp uses special Mac-only drivers!
Yup...but the thing is, there are much better drivers for the 8600M GT when it comes to better performance. When I changed to the newest Nvidia drivers, I saw a huge increase in performance in games such as Oblivion, F.E.A.R, etc.
Oh well, I'll just have to switch back and forth as necessary. Right now, Aquaria is my priority as it is so damn good. It even converted my 2D hating friends into 2D lovers.
I find it odd that it crashes though, as everything else works fine.