My labtop hasa setting to stretch the image to fill the screen or not. Say I wanted to set the res to 800x600. If that checkbox it checked, the screen doesn't look all blurry like a lower resolution would look on an LCD screen, it just a little window in the middle of the screen that's just as clear as it would be at 1024x768. But I think you'll have to have a Trident video card in your laptop for that, I'm not sure if other makers will feature that.