There should be a setting in your TV setup to set native resolution when a PC is connected, your PC can do this also. I tested my Vizio 37" HDTV which is 1920x1080 with a near 6 y/o DELL XPS Gen 1 laptop using an ATI 128 Mb video card through the DVI port and it ran at 1920x1080 on the Vizio, that test prompted me to buy a desktop for my entertainment center, good luck.