I have a 50" Samsung DLP. I am waiting for a replacement fan to come it. I was messing with a DishNet remote trying to pull up the menu and the screen went from snow, (wasn't connected to anything at the time) to black. Lamp is working. I can not get the tv to work with any inputs. It shows it is on DVI and I can not get the menu to stay open to change inputs. The menu will open and immediatly close. With the Samsung remote I can get a snowy screen on PIP but can get it to swap. Any ideas? Is this because of the bad fan?