So, I have XFree86 mostly running, but it's behaving strangely.  Symptom:
mouse stays in or near lower left corner of the screen.  Move mouse to
right, cursor moves up.  Move mouse up or down, cursor jumps back to lower
left corner.

It's a PS/2 mouse, it's connected to a PS/2 port, I get squiggles from it
if I cat /dev/pms0, and I've got XFree86 configured to use a PS/2 mouse.

What am I doing wrong?

-s