This really isnt about a computer but I thought someone would be able to help with this. When I play a DVD or gamecube on my tv... there are diagonal lines that run across the screen very slowly. I have my DCD player and gamecube hooked up directly (with a line spliter) to the front of my TV with the yellow video cable. I have taken the line splitter off and just hooked up one, and then the other, and the lines are still there. I have the splitter so that I can use both without have to change cables all the time. Thanks a lot.