I have a sony 36kvhs420 and was watching a dvd last night when all of a sudden the screen went red??? there was still an image, but red was the only color on the screen as if all colors were off except red. Well, i thought that maybe one of the video inputs came loose or something, but everything was fine so then i turned to all channels and video inputs and they were all red. I even unplugged all the inputs and they were still red. I left it off for five minutes and thank god it went back to normal. Any idea what could of caused this? My tv is pretty new of about 3-4 months.