serviceconf graphic doesn't start, and in console I've got the error :

ERROR:dbus.proxies:Introspect error on
:1.61:/org/fedoraproject/Config/Services/ServiceHerders/SysVServiceHerder:
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.AccessDenied: A
security policy in place prevents this sender from sending this message to this
recipient, see message bus configuration file (rejected message had interface
"org.freedesktop.DBus.Introspectable" member "Introspect" error name "(unset)"
destination ":1.61")
Traceback (most recent call last):
  File "/usr/bin/serviceconf", line 945, in <module>
    GUI (use_dbus = use_dbus).run ()
  File "/usr/bin/serviceconf", line 900, in __init__
    self.serviceherders.append (cls (bus = self._bus))
  File
"/usr/lib/python2.5/site-packages/scservices/dbus/proxy/serviceherders.py",
line 53, in __init__
    for service_name in self.list_services ():
  File "/usr/lib/python2.5/site-packages/slip/dbus/polkit.py", line 48, in
enable_proxy_wrapper
    return func (*p, **k)
  File
"/usr/lib/python2.5/site-packages/scservices/dbus/proxy/serviceherders.py",
line 66, in list_services
    return self.dbus_object.list_services (dbus_interface =
"org.fedoraproject.Config.Services.ServiceHerder")
  File "/usr/lib/python2.5/site-packages/dbus/proxies.py", line 68, in __call__
    return self._proxy_method(*args, **keywords)
  File "/usr/lib/python2.5/site-packages/dbus/proxies.py", line 140, in
__call__
    **keywords)
  File "/usr/lib/python2.5/site-packages/dbus/connection.py", line 630, in
call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.AccessDenied: A
security policy in place prevents this sender from sending this message to this
recipient, see message bus configuration file (rejected message had interface
"org.fedoraproject.Config.Services.ServiceHerder" member "list_services" error
name "(unset)" destination ":1.61")


something with last updates ?