At some point recently in rawhide things lost their ability to connect to the session manager. The following output is seen from gnome-session-properties: (gnome-session-properties:3279): GnomeUI-WARNING **: While connecting to session manager: Could not open network socket. could not connect to the session manager ps shows the session running: 2754 ? Ssl 0:02 /usr/bin/gnome-session gnome-session-2.20.0-1.fc8 is what is installed.
*** Bug 295961 has been marked as a duplicate of this bug. ***
another dup candidate: bug #297011 ?
*** Bug 297011 has been marked as a duplicate of this bug. ***
Should be fixed in todays rebuilds of libICE and other X libs