I recently purchased a 50inch hitachi lcd tv. I hooked up my xbox 360 and was all ready to go. But i watched disapointed as the picture displayed had a sort of green tint, and whenever many things were going on the tv the picture would get distorted. I tried putting in a dvd to see if it was just games, but it to had that green tint, although the image did not distort. help! please!