>>From: Simon Burge <simonb@telstra.com.au>
>>Just a hunch, but it sorta sounds like a cursor.  I didn't think the
>>3100's had a hardware cursor though...
>
>For what it's worth, the 2100 has the same problem.  If I remember
>correctly the little block goes away if you start X and then exit.
>But I don't have a 2100 handy to run netbsd on to double check
>that...

If that's true, then an even smaller patch than the one I posted
should work. 

Just add the cursorOn and cursor_off functions, and change pm_attach()
to do pmcursorOff, rather than the inlined equivalent of pmCursorOn.

The changes to pmloadcursor may not be necessary after all.