I'm running OSX Snow Leopard Server as a guest OS under both Fusion 3.1.3 and also the latest Fusion 4.0.1. When I open an image (e.g. a PNG file) with Preview in the guest OS, the content area of Preview where the image should be is blank.
Opening Console shows the following errors for each time Preview is opened:
Preview[PID] invalid pixel format
Preview[PID] invalid context
The competition's virtualization software works fine.