Ubuntu 8.04 \ Error not allowed to access the system configuration

If you have problem running :

System->Administration->Services
System->Administration->Shared Folders
System->Administration->Time and Date
System->Administration->Users and Groups
System->Administration->Networking

If the 'gksu' solution doesn't work for you.

The bug is in the System Communication Bus (dbus) services

Open a terminal :

Code:

gksu synaptic

Re-install all packages with dbus
Now the services will started, everyting will work.

Run:
System->Administration->Services

check System Communication Bus (dbus) services
since re-install packages only run services
and do not re-activate it when you restart my computer.

-Mihir Patel