I ran into a bit of a problem the other day with Microsoft Virtual PC staring outside of my viewable desktop area. And it turns out that it wasn't just a fluke, because it's happened a couple of times since then. And Robby, one of the guys I work with at Cogent, had the same problem. Here's how you get around the issue (I assume this works for any window if you have this issue, not just VPC):
- Right click on the Microsoft Virtual PC Taskbar item and choose "Move" from the context menu
- Hold the CTRL button and hit your arrow keys a few times. This makes the title bar of the window "stick" to the mouse.
- Wave your moue around wildly until you see the window
- Click the left mouse button and the title bar will "unstick"
That should get your window back.