In trying to determine Window's Vista System Requirements on my Guest OS, Windows says it needs a video card which is DirectX 9 supported and a WDDM driver, whatever that is..... When I pull up the Video Driver in "My Computer" in my guest OS Conrol Panel, it says "Parallels Video Driver." Does not the Guest OS use the same graphics card as the Host ? Not sure how to interpret the Parallels Video Driver deal or whether Windows Vista will work with my particular Mac.... Thanks David