I have a Nt 4.o domain with one server and 17 workstation, I need to add a new server to replace the old server, I do not want to get rid of the old server yet but want to setup the new win 2000 server as the domain controller, what do I need to do to the old nt 40 pdc, do I need to demote it to a bdc??? I want to keep the system a domain and not a workgroup, and do I need to setup the 2000 domain controller in mix mode.