Hm, I am running Windows 7 x64 but I'm not getting anything like that. The mini-WMP window does snap to center of screen when I shake everything back in to position though, which is unusual... Can you describe the above screenshot in more detail? is the background just an Explorer window you had open? Does the ghosted WMP window stick there and not move? Is it just an imprint, and the window is somewhere else? A bigger screenshot (more area) would be helpful...
Windows Outreach Team