Ok, so, I deleted the line
setenv DISPLAY localhost:0.0
from my ~/.login file and then exited X, logged out (console) and
then logged back in (console again) and checked. At that point,
the environment variable DISPLAY wasn't set at all. I then started
up X (via xinit) as I am accustomed to doing, which in turn started
up fvwm, and I then got an xterm window and checked again. Now I
have the following:
DISPLAY=:0
Now all of the following are working happily:
firefox
opera
chrome
xpdf
evince
gimp
vlc
So everybody is happy, it seems, and I am back in the saddle again.
My thanks to Stephen Dennison <[email protected]> for taking me right
to the heart of the matter.
(It serves me right. This is the kind of thing that happens when/if one
neglects to upgrade things for years and years. What can I say? I was
busy. :-)
Regards,
rfg