I am now working on my 2 branches. I have successfully configured 3 PC's (XP Pro) at my main location and joined them to domain and moved them out to one of 2 branches. When I attempt to move a PC that is located at a branch off the NT 4.0 domain over to the Win. 2003 domain I get a DNS error. I have created the user & computer accounts in the respected OU's on the DC. I have gone as far as manually creating the Host file and have check to make sure the PRT records are being created for the PC in question. I also have reverse lookup zone for the 2 branches. I am still getting the same error. There at this time is only 1 DC which is located in the Main location. I believe I have good working DNS as I can go to run and successfully browse or complete a name resolution query. I can also do an nslookup and get response from my Win. 2003 ip address and FQDN. I can also do an nslookup by name of the PC I am attempting to join to domain locally and from the branch. Complete Error is Attached.