I just got back and have a little time with my 3100 again (yay!) and for
starters, tried out 1.3beta.  However, I'm also having trouble with the
mouse not working -- Xcfbpmax would start up fine (after finally reading
the README.pmax and forgetting about the X11R5 inability to handle
compressed fonts :-) but the mouse cursor would not move.  I basically
tried the kernel netbsd.aout under a 1.2D install (booted the 1.3b
rather than the 1.2D kernel image) as well as a fresh 1.3beta install. 
In both cases, the mouse cursor would not move in X11.  The "annoying"
(quote from previous posts...ugh) cursor problem fix seems to be the
source of the brokenness of the 1.3b kernel.  Anyone else find this to
be the case?

Thanks,

-bc