Hi, one way to get the gui for root is to select "console" to login from the login screen.
you should get a shell prompt.
Type in root and enter root password.
Type startx and you should be taken to root gui. (As I see it (the question))
The other thing to do is to add your "user" to the wheel group.
Edit the /etc/sudoers file
# sudoers file.
# This file MUST be edited with the 'visudo' command as root.
# Failure to use 'visudo' may result in syntax or file permission errors
# that prevent sudo from running.
# See the sudoers man page for the details on how to write a sudoers file.
# Host alias specification
# User alias specification
# Cmnd alias specification
# Defaults specification
# Runas alias specification
# User privilege specification
root ALL=(ALL) ALL
# Uncomment to allow people in group wheel to run all commands
%wheel ALL=(ALL) ALL
# Same thing without a password
%wheel ALL=(ALL) NOPASSWD: ALL
# %users ALL=/sbin/mount /cdrom,/sbin/umount /cdrom
# %users localhost=/sbin/shutdown -h now
to edit as root type...
(enter root password)
Once in vi use "i" to insert (edit)
use arrow keys to navigate....
Uncomment the lines....
use "Esc" to exit insert mode
use ":wq" to write to file and quit vi
see how you go.
<edit> reboot or restartx to test. </edit>