Local Groups are Gone!

Giganews Newsgroups
Subject: Local Groups are Gone!
Posted by:  Mike (..@b.com)
Date: Fri, 17 Mar 2006

I have an  XP SP2 machine that is joined to a domain.  When I go to the
local users and group to add a domain account to the local administrators
group, there is no groups shown.  It shows that the groups folder is empty.
There should be the built-in accounts here.  Is this a display error, or is
there a way to unhide these groups.