I have a Mitsubishi WD-52628 that seems to be stuck in PIP (picture in picture) mode. The picture appears only in one corner of the screen and is very small like it's PIP. The rest of the screen is blank. This is the case whether I try to watch satellite TV or a DVD using a DVD player. I have tried pressing PIP/POP and almost everything else on the remote, but I am not getting back the picture on the full screen. Any ideas are appreciated.