About a month ago I purchased a new upgraded hd for my tivo because the old one failed. Everything installed and worked perfect for about a week. Now in the last two weeks it will randomly freeze to a black screen and become completely unresponsive. I unplug and plug back in the tivo which resets and will work fine again for a bit. Now its starting to do this more and more often, three times today while watching the same recorded program. It mostly happens on playback of recorded shows, but it has happend on just live tv which its also recording on its own. This makes me think the new hd is faulty, what do you guys think?