Hi, This is a really weird issue. Sometimes when I want to reboot, shutdown or log out ('f' -> Leave -> Log out / Restart / Shut Down) nothing happens (the count down messagebox doesn't appear) . Lock, Sleep and Hibernate are okay. There are no error messages in .xsession-errors, /var/log/messages /var/log/Xorg.0.log, /var/log/kdm.log and/or /var/log/secure. When log out etc. fails authentication more generally seems to fail. e.g. I tried to change the shutdown command (System Settings -> Login Screen -> Shutdown). After pressing the Apply button, a messagebox appeared telling that authentication failed. In /var/log/secure the following messages appeared: May 14 23:17:12 ps-1866 polkitd(authority=local): Registered Authentication Agent for unix-session:/org/freedesktop/ConsoleKit/Session1 (system bus name :1.55 [/usr/libexec/kde4/polkit-kde-authentication-agent-1], object path /org/kde/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) May 14 23:18:14 ps-1866 polkitd(authority=local): Operator of unix- session:/org/freedesktop/ConsoleKit/Session1 FAILED to authenticate to gain authorization for action org.kde.kcontrol.kcmkdm.save for unix- process:2171:397117 [/usr/bin/systemsettings -caption System Settings --icon preferences-system] (owned by unix-user:martin) The above issue happens both in up to date Fedora 16 and 17. Have anyone else seen this? Any ideas how I can get more information on this issue? Thanks, Martin Kho _______________________________________________ kde mailing list kde@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/kde New to KDE4? - get help from http://userbase.kde.org