[Tfug] can't start opera after su to other user

[christ]

Hey, I was su'd to another user on my system, and
noticed that I couldn't start firefox or opera like
I can when I su to root.

The message is 
%firefox
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified
(firefox-bin:70552): Gtk-WARNING **: cannot open display: :0.0

Does anyone know why I can do this under root, but
not other users? Just curious.

BTW, I'm on freebsd if it matters ~ Chris


-- 
christ <skeptikos at gmail.com>