http://www.tivocommunity.com/tivo-vb/showthread.php?t=456559 Since the long thread above is devoted to the SDUI remote lockups I wanted to start a new thread related to HDUI lockups. Over the year that I've had 2 Premiere units I've toggled back and forth between SDUI and HDUI. I would go to SDUI because HDUI is too slow. SDUI is fast, but frequently locks up for 10 minutes at a time becoming unresponsive to any remote input. Since I spent more time over the past year in the SDUI than HDUI I was not aware of lockup problem in the HDUI. I got so fed up with the SDUI lockups (and Tivo's complete denial there is a problem) that I finally went to the HDUI and decided to stick with it despite the pathetic laggy interface. I experienced an HDUI lockup about a week after that but not much else went wrong in the past month. Then suddenly I started getting lockups in the HDUI just like SDUI (both units). It would just throw up the green ring and become totally unresponsive to the remote for about 10 minutes. See the YouTube videos links below to see what happens. The second video was the tail end of the 10 minutes and cleared away at the end. I kinda held my comments until the next update since according to Tivo I'm the only person in the world with any kind of Tivo Premiere lag issues or lockups in either SDUI or HDUI but even the latest update didn't fix a thing. http://youtu.be/TZz0BOSJK1M http://youtu.be/tGyhzbmL80A The only good thing to come out of my Premiere purchase (and last ever Tivo purchase) is that I did upgrade to a 40mbit internet connection which is pretty kick-a**, but doesn't do squat for Premiere. I know, I know, I know there are people out there who never have an issue with their Premieres. They are super fast, never lock up, never miss a recording, don't show any ads, never need rebooting, and make their breakfast in the morning with eggs just the way they like them. For me, they both suck.