Lu
I'm not a computer wizz but, until someone who is responds.......
It depends how you've set your screen resolution - the size of your monitor doesn't matter.
Are you using 800x600? If so, the pic will probably over-run.
It doesn't @ 1024x768.
Assuming you're using Windows:
Right-click on the desktop
Select 'Properties' and check your screen resolution settings.
Heliport