DNS ain’t right after PDC upgrade

I recently upgraded my PDC from NT4.0 to Win2k, and installed DNS via the wizard, etc., but the DNS I’ve got isn’t right. I don’t have any of the _ldap or other SRV records, and when I run the diag. tool DCDIAG.EXE it reports communication errors.
On the other hand, the new Win2k machine is replicating fine with the old NT4 BDCs. Can I just delete my DNS setup and re-do it? Suggestions are welcomed.

–Steve