OK, things haven't been as rosey as of late. I've been installing all recommended updates, and things would stop working, like printing, for instance. Remove, re-install printer, things back again. Today things went south in a hurry as upon reboot, I was kicked to a root shell with DRDY ERR messages complaining of bad sectors. I mounted a USB flash drive, backed up all of my data, and ran fsck, which prompted to rewrite bad blocks. After that finished I'm back in business, but I think I'll back up more frequently now.