Not your normal DISPLAY problem.

[Larry Sanderson]

At first glance, the "Can't open display" error I'm getting seems the
run-of-the-mill variety... Just make sure the X-server is running, and the
DISPLAY variable is properly set.  But...

If I'm on a second (fully functional) box, and set the DISPLAY to point to
the problem machine, the X-programs pop up just fine. So, the X-server seems
to be running correctly.  If I'm on the first and point the DISPLAY to
itself (or to the second fully functional one) then nothing works... I
always get the "Can't open display" error.

It seems as though either the DISPLAY variable isn't being read correctly,
or I'm doing something incredibly stupid.

Any insight?

-Larry