Windows go off the screen when maximized/restored

I've had this problem three times so far, and the first two it was just that the application window had ended up off the top of the screen and couldn't be moved, because I couldn't get to the title bar. But now, one has managed to go completely off the screen, to the point where I can't even see it. Is there any way to retrieve program windows that end up off the screen and windows where the title bar ends up off the top of the screen?

I'm using Windows XP in this case, but it's also happened to me once in the past with 98.

This is really bugging me...it seems ridiculous that something like this is even possible.

 

To move a window where you can't get at the title bar, press alt+space bar. Then release it, press m, release it and then use the arrow keys to move the window where you want it. Only problem is, if the window is located where you can't see it, how do you know which way to move it? Am I understanding correctly that you can't see the window at all? There is a fix for that too, but right now I can't for the life of me remember what it is. I would guess that there's a registry entry you can delete that would make it go back to the default location. Does this ring a bell with anybody?

What program is it with the problem window?