[Samba] Why do I see two Workgroups in Windows?

[Robert Steinmetz]

I have two samba servers in a domain one, named Thelma is the Domain 
Controller. The other named Louise is a member server. When I browse the 
network on a Windows workstation I see two workgroups, ATLANTA which is 
the domain name and contains all of the computers and THELMA, which is 
empty. I think the only WORKGROUP should be ATLANTA.

Any idea why this is happening?
-- 
Robert Steinmetz, AIA
Principal
Steinmetz & Associates