Ran dcpromo.exe to demote a Win 2000 server from a DC to a member server. All appeared to go well, but turns out that the server was still the Global Catalog Server and Exchange refused to start. Checked that the other two DCs (2003) were involved in the 5 FSMO roles and made them Global Catalog Servers. This took care of the Exchange problem; however, now when I go into AD Sites and Services it still shows the old DC along with the other two DCs under Default-First-Site-Name > Servers. No NTDS info with it, though. Can the old DC be safely deleted or is there something else that needs to be done to remove it from AD S&S?