please rpm -qa |grep dbus in a terminals and let's see what you got installed?
Here it is
[dwmoar@workbox ~]$ rpm -qa |grep dbus
libdbusmenu-qt2-0.6.4-1pclos2010
qt4-qtdbus-4.7.1-2pclos2010
libdbus-1_3-1.4.1-1pclos2010
python-dbus-0.83.2-1pclos2010
libdbus-glib-1_2-0.88-1pclos2010
dbus-1.4.1-1pclos2010
dbus-x11-1.4.1-1pclos2010
libeggdbus1_0-0.6-1pclos2010
libqtdbus4-4.7.1-2pclos2010
[dwmoar@workbox ~]$
libdbus-glib-1_2-0.88-1pclos2010
libdbus-1_3-1.4.1-1pclos2010
libqtdbus4-4.7.1-2pclos2010
dbus-1.4.1-1pclos2010
python-dbus-0.83.2-1pclos2010
qt4-qtdbus-4.7.1-2pclos2010
libeggdbus1_0-0.6-1pclos2010
libdbusmenu-qt2-0.6.4-1pclos2010
dbus-x11-1.4.1-1pclos2010
This is what is installed on my system.
Please check to make sure dbus is running in PCC. You can also delete the .dbus folder in your /home and reboot in case the permissions got messed up somewhere.
Another post on the forum said to uncheck the box to run /tmp in memory (ie clean tmp at each boot) fixed his issue.
I'll send up an udpated dbus package to the repos today just to see if it helps your situation.
One last thing. Is this a fairly recent system or something that is dated like P II or P III system.