Can't reboot or halt from gdm

["Todd Myhre" <todd.myhre@rogers.com>]

I've set up gdm on a new laptop but the System menu does not
seem to work correctly.  When I try to halt the system, it
simply reloads gdm and the following error messages appear
in my syslog:

  gdm_slave_xioerror_handler: Fatal X error - Restarting :0
  gdm_child_action: Reboot or Halt request when there is no
     system menu from display :0

There do not appear to be any errors in the XFree86 log at
all...

Any ideas?  Thanks in advance!

--
Todd