new computer was a success. all files restored.
I'm heading up to Karen's office now, to rebuild a more-comprehensive backup-regimen.
it's been a very wild couple of days. now, all I have to worry about is how to deal with our non-communicative younger son, who, it appears, has pretty much flunked out of college, and is about to have to deal with the consequences (i.e. no more financial support for the indefinite future).