I have a samsung TV that we bought as open box special a year or so ago. It was working perfectly untill about a month ago. Now the top three inches of the screen is darker then the rest of the picture. It is fairly easy to see on lighter colors. Also the picture is tilted. I was able to adjust this to look ok by maxing out the tilt in the menu controls. It doesn't matter if we are using the DVD player, cable or broadcast TV. Is there any way to fix this or is it just better to live with it?