Guys, I need your help on what I hope is not a critical problem. The last couple of days, my Mitsubishi 46807 rear-projection television has been intermittently displaying narrow green lines vertically from one end of the screen to the other. The lines run all the way from the top to the bottom of the screen. At first, I thought it might be my Dish Network box, but no other set is exhibiting this problem. I further ruled out the box by turning it off completely while the lines were displayed. This did nothing to resolve the problem. I changed my receiver to DVD and the lines did not go away. The Mits is less than a year old (I bought it from Good Guys last August). To the television, I have a Yamaha RV-800 receiver, a Sony DV-PNS300, a Sony VCR, and an X-Box and Gamecube hooked up. I don't think the problem is with any of the other equipment as they aren't powered up and this problem has not occurred before, so I have a feeling it is the television itself. I hope someone who has had this problem before can help me out. Thanks in advance.