The stink of it is, I had this working: mouse-mode, correct symlinks, all of it...for like 10 mins. before I realized, 'oh crud, I forgot to disable something' and in my haste of mucking w/ settings, tossed the good init I had trying to ID what was missing.
Self: You're dumb
I think I can recreate it, but I've got other stuff to do too, so this may get paused for a while - Monterey beckons as I have yet to take that plunge, although I really should soon.