Domain Changes

Our network recently removed a PDC from our domain. That PDC became a PDC for a different network (while we had a T-1 connection). Now I continue to get NETLOGON errors for the different domain (no longer connected at all) even though I have removedall instances referencing the PDC that was removed including the WINS database as well as the registry on our promoted PDC. How do I keep the NETLOGON errors from occuring?