Need DNS error help

I have three Win2K servers all as DC’s I have been getting errors about syncing and I used the dsnlint program and recived the folloing error
“CNAME records for forest GUIDs missing on server:
GUID: 49450dba-8542-476b-816f-2bf531253536._msdcs.meelift.com
DC: ELMO”

How can I correct this? Can I try to Manually add this? On a second point these all Have Active Directory on them and they all have the same server listed as primary DNS, I was told that each server should have it’s own IP address listed as Primary.