Hi, I think I experienced this problem last time I tried to replace a drive, and I can't remember what I did to fix it. To head off catastrophic disk failure, I used mfsbackup/mfsrestore to copy my 250GB hard drive to a new 250GB hard drive over the weekend. After it finished, I ran mfsinfo to make sure both drives had the same MFS structure (they did). Then I put the new drive in the TiVo. I can hear the drive spin up and do its little pre-boot "chattering" (sorry; after 25 years of experience listening to drives and learning their sounds, I still don't know the official terms for anything), but then all I hear is whirring -- no more read/write chattering, nothing. The boot screen never moves beyond "Welcome. Powering up..." Do I need to do something more to this drive to make it boot?