OK...first they were showing, now they aren't. Of course I did some maintenance, but nothing that I would have thought would change the signature. No, no...of course I don't remember what I changed. I do know it was nothing fancy, I was just working in the Admin panel.
Can anybody help me figure out what switch I flipped to remove the signatures?
YIKES.
There are per user options to show/not show signatures which can be reset from the administration panel.
-[Unknown]