So, if you run a notebook with different monitor configurations, you may find yourself unable to find a program you launched to a different monitor previously. Happened to me with NotePad++ today.
So, in Vista, you would right click on the taskbar program, choose move, then use the arrow keys to bring it back.
In Windows 7, press Shift-Right Mouse Button, then choose move, then press the arrows and you are good as new. 10 minutes wasted searching, but I’m good now.
Here are some other short cuts.
http://www.sevenforums.com/tutorials/4052-shortcut-keys-windows-7-a.html
(can’t remember where I found this screen shot :( )