Well after putting in the new 80GB hard drive this past weekend I had the Tivo freeze up on me a couple of times...but it's been about 24 hours since a freeze so I'm hopeful all will be well. If not I have a few other things I can try but I want this to work because theres some more hacking I'd like to do on my Tivo... swapping out those hard drives has given me the Tivo hacking bug... not sure if that's a good thing...