You wrote (in your message from Mon 16)
 > 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?

You should configure a PS/2 mouse as BusMouse under NetBSD, since
that's what the pms0 driver emulates. 
(cf. <http://www.netbsd.org/Ports/i386/faq.html#x_and_ps2_mouse> or 
<http://www.xfree86.org/3.3.2/NetBSD7.html#7>)

-- 
					Matthieu