I would usually say to play with the monitor settings directly since all normal monitors have buttons on them to adjust the screen display. Sometimes the screen get misplaced either in the shipping or because of reason X and you simply needs to move the screen center a little for resolution X of the monitor to get a good setting.
This is more complicated since you have a laptop tough. I don't have experience in that, so I can't really help you... But if I were you, I'd be looking in that direction.
