Greetings, what does the following entry mean exactly in the POA logs?

12:12:15 02C C/S Login Windows ::GW Id=George ::

Does it mean that user George logged in from a workstation at that IP
address? Normally I would take it this way too, but I can't see how this is
possible, the user at that workstation is somebody else, they don't have
proxy to George, nor do they have George's pswd (in fact to be safe it was
changed about 10 minutes prior to the above time).

Is it possible if George was the first person to login on that computer when
it was being setup after GroupWise was installed, that in some registry
setting somewhere that George is the default user, and his name shows until
the user actually logs in?

Thoughts appreciated, thanks