I have a 3 1/2 year old Sony 50" Model KF50WE610 build date oct. 2003 projection LCD TV. Last week the screen went completely green, kind of like watching TV through a camcorder set to night vision. I called Sony and they advised me to unplug the set and then plug it back in. This seemed to solve the problem for about 15 minutes before the screen went green again. Resetting would again give me about 15 minutes of normal color before it would go green again. Any one know what is causing this problem thanks