Well...
I ran the Maxtor diagnostic and got an S57 code. They aren't specific about it, but tell me that the drive is bad and must be replaced.
She has a burner and has most of her stuff backed up, but like most of us hasn't backed up anything from the past couple of weeks. After calling her, she has assured me that there is nothing on there that she will miss too much, so looks like it's RMA city for me.
Just for kicks, I'm running the Maxtor low-level format to see if that makes a difference when I re-run the fitness diagnostic. I usually use the old DOS Diskedit program and fill the first few hundred sectors with zeroes, effectively destroying any boot sector and partition info on the drive. Anyone have any comments on either method?
Prof
PS: A Big Hearty Thanks to all who responded - it is quite impressive that S-M's Emergency Help Forum generated such a quick response from so many knowledgeable people. This is already the best daggone tech site on the internet and is getting better every day!