PCX View, d.mon

I try to run grass4.1 on a UNIX workstation using
a PC with PC-XView.
When I try to open the monitor
d.mon start=x0
I get,
X Error of failed request: BadMatch (invalid parameter attributes)
  Major opcode of failed request: 78 (X_CreateColormap)
  Serial number of failed request: 25
  Current serial number in output stream: 26
Any help?

I've had PC-XView running for quite awhile now, with GRASS, so I've
forgotten how I corrected that error, but I do remember it. Do you
have Microsoft Windows running in 256-colour mode? I don't think
it will work in 16 colour mode. Also the PC-XView startup preferences
I use are:

  Default visual class: Dynamic
  Use windows system colours (oops, spell that American: colors)
  Window Management: Remote.

I run Motif then, on the UNIX side, once I have connected to it,
simply by entering the UNIX command
  mwm &

I don't remember what, if any, of the above might be relevent. Let me
know if you continue to have trouble, and I'll try a bit harder to
help you figure it out.

Tim.