> On my DECstation 5000/200, NetBSD-1.3.3, (but there's a chnace I didn't
> upgrade X from 1.3.2), I get
>
> "Bad system call (core dumped)"
>
> from Xpmax.

As it says, you need new kernel.  Pre-release 1.4 snapshot will work fine.

Tohru Nishimura
Information Technology Centre
Nara Institute of Science and Technology