I've had my S3 since they came out. It's been running like a champ. Until a couple of weeks ago, it started having problems booting up. I think on the third try it finally started up. But then the next day, it was stuck on "Powering Up..." screen. Several attempts to powerdown/restart were not successful. I've been around Tivos long enough to know when my hard drive failed. So I ordered a new HD upgrade from Weakknees, which arrived today. 5 minutes later it was installed. Same problem. Constant "powering up.." reboot cycle every 2-4 minutes or so. What next? Is this a repairable problem? This box has lifetime, and I'd really like to get it working to avoid "upgrading" to a Tivo Premier. Thanks.