netlogon error 5447: DNS Server was 'deleted' had to reinstall on 2000 DC

Have looked through the KB, but the answers found have not helped thus far.  

I had come into a network that was not getting out.  found that the DNS Server on the DC was 'not there'. I added a secondary AD integrated DNS server to the Exchange 2003 box, which I had to reinstall the DNS Server on the current 2000 DC , set the forwarders and made the necessary changes to get the network up and running.  Which all went well yesterday.  

I returned to a system that is having intermitten problems:  exchange email isn't updating, though the outlook clients say they are connected, Phone service seems intermitten, but most of all is this NETLogon error on the DC

Event Type:      Error
Event Source:      NETLOGON
Event Category:      None
Event ID:      5774
Date:            2/19/2009
Time:            3:33:56 PM
User:            N/A
Computer:      SEC-SERVER
Description:
Registration of the DNS record '6b8e89a4-08d5-4cb4-8459-b4e5d47b284b._msdcs.standardelectronics.com. 600 IN CNAME SEC-SERVER.standardelectronics.com.' failed with the following error:
DNS RR set that ought to exist, does not exist.  
Data:
0000: 30 23 00 00               0#..    

I have tried to add the alias in _MSDCS>GC