Advertisements I have serched and serched but cant find the answer to this. I apologize if it has already been posted. I have a standard series 3 with the WD my DVR Hard drive. While watching TV I get random freezes I think it may just be HD channels but it is so frequent I cant watch TV any more. Other times all I get is a gray screen. When you go to the tivo menu it shows both cable cards are working like their suposed to be. After a restart everything is normal. Other times I get the gray screen and the Tivo wont respond at all. I have to unplug the system to restart. Please help!