I came home from a weekend away to see my TiVoHD had shut down. I rebooted it and it said it can't find the external drive. This is a first-generation 500 GB MyDVR expander. So I unplugged and re-plugged the drive and the eSata cable and rebooted. The drive boots up with the big circle flashing slowly. TiVo still can't find it. I reboot it a few more times, and nothing. Now the drive won't boot at all, and I've tried plugging it into electrical outlets all around the house that I know work. So, what are my options at this point? Should I buy another AC adapter for $18 (aftermarket)? Any chance it's that? Can I take the drive out of the MyDVR Expander case and put it in a different case and have the TiVo recognize it as the same drive (and if so, what kind)? Any chance it's that?