Running Parallels 7 on a MBP w/ 8G - 4G devoted to the host. When I use full screen mode and swipe between the host (OSX) and guest (Windows 7), the screen display gets trashed with black boxes and an improper display. The application on the guest (also full screen) is a WPF application so it's using DirectX h/w acceleration. When I minimize and restore it a few times, it eventually comes back, but then the mouse cursor hit testing is off - I click on something and it clicks just above or below the actual cursor. It's enough of a problem that I removed Parallels 7 off the machine.
