Gnome Warning

[foao <foao@xxxxxxxxxx>]

Today the following message appears using gnome-terminal :

$: su -c "gedit /etc/inittab"
(gedit:3557): GnomeUI-WARNING **: While connecting to session manager:
Authentication Rejected, reason : None of the authentication protocols 
specified are supported and host-based authentication failed.

Nevertheless, I can open and modify the file without problem.

while :
$: su -c "vi /etc/inittab"
works fine without warning

Any suggestion ?

Franck