Window gets stuck off-screen without external monitor connected
I can see the hidden window using Expose/Spaces, and move it around to different spaces, but whenever I try to bring the focus to it, the window hops back to it's off-screen position. Is there any way to rescue the window back to the visible display? The only way I know of is to plug in the external monitor, which isn't exactly possible when I'm on the road.
MacBook, Mac OS X (10.5.1)