Hi. Sorry if this is excessively lazy of me but there are too many posts to go through. My TH-50PX75U has a native res of 1366x768. I have my ATI x1900xt video card set to 1360x768. It's connected via a dvi to hdmi cable. There should only be a total of 6 unused pixels (3 each side) yet I have a quarter inch black border around my desktop. I don't get it. Please help?