Thanks sea, i tried that already, and i can login via the console, though after when i hit CTRL+atl+F1 i get back to the login screen with the same bug
Also i tried to run command from this thread http://forums.fedoraforum.org/showthread.php?t=270835
though i get an error when trying to start : gnome-session-properties, though i guess this make sense since the session hasn't started.
Prior to this i did nothing, fresh install of Fedora 16, i made a couple reboot everything was smooth and fine. Then the problem happend, the only thing i did since the install was getting the list of updates, though i haven't made one yet.