Have you tried waiting until the display sleeps (could take 20 min or so) and then hit a key or click mouse button? For many the proper desktop will appear then. If so, use the workaround here: http://www.infinitemac.com/f57/blue-screen-of-annoiance-t5025/#post41942 until you find a proper fix. Welcome to the world of OSX86... prepare to learn a whole lot. Not for the dabbler...