When I set the resolution to 1280x800, I get black bars on the top and bottom when using a DVI cable. When using a VGA cable, it fills the entire screen. Even though it is not the native resolution, it is the same 16:10 ratio. I have an ATI Radeon HD 4800, Windows 7(64 bit). Now I'm using 1024x768 and it fills the screen but it is stretched.