Well, I am not happy at all with this. I was satisfied with the old software, my 510 has worked flawless for the most part over the last 6 months. I have had to reset it a couple times over that period, no big deal. So I kept avoiding the software update because it being undoable if somethine goes wrong. It basically makes you take the upgrade though if you want your timers to fire because I turn my box off when in use. Needless to say, this new upgrade 3.00 made my box junk. Add another box of mine to that list. In only 2 days, I have had to reboot it and I have missed 3 of 5 timers. I never missed a timer with this box in the past. I turn my box off when not in use. I came home at 11 last night and saw it recording SNL, good thing. I turned the tv on and saw it recording correctly. I never touched the receiver or the boxes controller so the after recording it could turn off automatically. When I woke up, the box was still on, so I knew something was wrong. But the box acted normal, not locked up. I went to the pvr screen and SNL was not in there, but I saw it recording last night. It is in my room so I know I was the only one who touched this box. This company is really testing me. Hopefully others are fine, but my box is now crap.