We are running a 2003 Acitve Directory Domain. All computer and user accounts are accessible in AD. When we browse through explorer the file manager we can only view a select group of machines in the My network places --Microsoft Windows Network -- Domain Name. Shouldn't we see a computer associated with the domian? We are only running the DNS service and DHCP. There is no WINS. We also have 7 separate V-Lan and early indications may point to a V-lan specific problem? I have read though earlier postings but I have see no solutions to this issues. Are we missing or might we be blocking a specfic port that is allowing communication? How do PC's populate the Network Neighborhood? Any advice?