Has this ever happened to you? You do something with your monitors and suddenly Matlab or another program opens a window off your screen and you have no idea how to get it back on the screen? This is a pretty common occurance if you have a laptop and frequently switch from a multi-monitor to single monitor setup. I found this handy fix on the MS forums (here).
Moving the window around is as simple as holding down the windows key and pressing the left or right arrow keys. The window will be automatically docked to one part of the screen or another, moving it back on screen!