I've noticed that people aren't reporting the black flashing problems anymore. I'm not sure if that is because it is not a problem anymore, or people have gotten used to it. As for myself, I still get the flashing occurring on random HD channels, so I put it a call to tech support. He said he's never heard of the problem. He wanted to do a complete reset of my PVR, but mentioned I would lose all my recordings. So I'm going to live with the black flashes for now. Just wondering if other people have had the problem fixed with a complete system reset?