Problem installing software as root
 

I get the following message when attempting to install mozilla as root by running ./mozilla-installer

Xlib: connection to ":0.0" refused by server
Xlib: Client is not authorized to connect to Server

Gtk-WARNING **: cannot open display: :0.0

:confused:

you'll need to open your x server to other sessions

xhost +localhost

you can also become root by typing
sux
instead of
su
which will automatically cover this for you.