Yesterday morning while my kids were eating cereal and watching Dora on Tivo, my HD Tivo went through an unexpected reboot. Not sure why. Afterwards everything slowed way, way down. I hit the Tivo button, and it takes 30 seconds or more for it to register and pull up the menu screen. Every button I push on the Tivo remote takes up to a coupld minutes to get a response out of Tivo. Pulling up the Guide takes close to 10 minutes as each line of infomation slowly appears one by one in 10-20 second intervals. If I take the 5 min's it takes to navigate to a recorded show, then there's no problem watching it. It's only when I'm asking Tivo to process a request that it's as slow as molasses. It's almost as though it's processor has slowed way down. I've had the box for 3+ years and never had a problem. I forced a reboot and afterwards it starts out working OK for a few minutes, but then it begins to slow down again. It's virtually unusable at this point. I was thinking that maybe it was a software update that backfired, but since I don't see anyone else complaining about this same issue I'm assuming it's not a software update prob. Any suggestions for what might be causing this problem and how to fix it would be appreciated. Thank you!