Game resolution all out of wack??

[Goronok 0]

I have a panasonic toughbook (laptop) and it works perfect for almost everything i use it for. My only question is the resolution settings are all out of wack. It displays 800x600 just fine in windows and all that stuff. the problem kicks in when i start up a game. it displays the stuff fine, but it minimizes the screen a lot. Its all there, it just decreses the screen size by like an inch and a half on each side. Does anyone know why this happens, and a possible way to fix it? it does it on every game, doesnt matter which one it is. Thanks for the help