While using Windows XP, I had a window that had somehow fallen completely off of my screen. Right-clicking the window in the Taskbar and selecting Maximize brought it back, but there was no way I could get the window restored to where I could move it around my screen with my mouse.
Luckily, I found an article on how to Bring Misplaced Off-Screen Windows Back to Your Desktop
Windows XP users can right-click the item in the task-bar and select Move, Then use the arrow keys on your keyboard to move it around. Windows 7 users will need to hold down the Shift key and right click the item in the task-bar then select Move.
Once you have managed to arrow the window back onto the screen, you can use your mouse to drag it to a new position.
If this method doesn’t bring the off-screen window back, you can also try right-clicking the task-bar and select Cascade windows.
Sometimes the little things escape me. I would’ve probably never thought of these steps. I mean, who ever uses the “Move” option? :)