We have a character based graphical application that runs in a telnet
session. It works fine if we telnet in and login as a specific user.
However, if we logon as a different user and su to the specific user,
the graphical application does not come up. I'm sure this has
something to do with stdout or a display variable or something, but
I'm not sure. Is there something that needs to be reset following an
su to make the graphical application to come up?