merci pour vos reponses!
voila ce que me dit la sainte console apres avoir demarré le St-Beryl-manager en root:
[root@localhost dokteurping]# beryl-manager
[root@localhost dokteurping]# Reloading options
beryl: No GLXFBConfig for depth 32
beryl: No GLXFBConfig for depth 32
beryl: No GLXFBConfig for depth 32
beryl: dbus_bus_get error: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
beryl: Plugin ´dbus´:initDisplay failed
beryl: Couldn´t activate plugin ´dbus´
Couldn´t initialise dbus. This should not happen!
Initiating splash
voila une capture d´ecran pour vous montrer ce qui se passe: le cube marche bien, beryl-settings ne marche pas et la barre de menu disparait...super....
http://img132.imageshack.us/img132/3337/captureberylxa5.png
merci d´avance!