I just noticed that if I'm in the HDUI, and the tv input is set to my premiere. If I turn on or off my blu-ray player (both are connected via HDMI), the picture in picture box on the top right of the HDUI disappears. It goes away as in completely vanishes and is filled with the discovery bar going all the way to the right edge like the pip box was never meant to be there. I have to restart my box or restart the HDUI to get it back. Done it a couple times now and it does it each time.