I'm almost tempted to declare this a show-stopper for FreeBSD 4.1.
Is anyone else even able to reproduce this?
Yes. Not reliably, but yes, every so often my mouse goes nuts, just as
it has done since going to 4.0. I'm currently at 4-stable as of about
ten days ago. I do use moused; when this happens if I kill and restart
moused (thereby closing and reopening /dev/psm) it fixes it.
I haven't found any activity that correlates with the symptoms, either.
It just seems to happen randomly.