I've noticed some symptoms for a few months now, but they've been very intermittent, until now. The root cause of the issues are heat. Of that I'm fairly convinced. I had the unit sitting on a shelf about 8" above my receiver, but also had my digital cable box sitting directly a top the Tivo. Of the two, the later contributed more to the poor rate of heat dissipation. I placed spacers in between them after I began seeing problems, but only added about 1/4", which wasn't suficient.

Internal temps were usually in the high 40's, but often in the low 50's (C). I'm goign to move things around on the shelves, but that's a two person job, given the size of my TV and entertainment center. Gotta wait for my brother to come down for Easter to have enough time to move everything.

Ordered the new drive, a 120gb Maxtor unit with 8MB Cache. Should be here on Wednesday. I'll do the replacement on Thusday, probably.

I'm thiking I may stop by Time Warner and pick up a DVR for a few days, just to cover the interim.