Event ID 11 KDC - serviceprincipalname duplicate

I get these messages on my domain controller (note - one is uppercase and one is lower case on the server name).

Event Type:      Error
Event Source:      KDC
Event Category:      None
Event ID:      11
Date:            3/22/2007
Time:            4:42:25 PM
User:            N/A
Computer:      mydomaincontroller
Description:
There are multiple accounts with name MSSQLSvc/MYDBSERVER.mydomain.com:1433
of type DS_SERVICE_PRINCIPAL_NAME.


Event Type:      Error
Event Source:      KDC
Event Category:      None
Event ID:      11
Date:            3/22/2007
Time:            3:57:16 PM
User:            N/A
Computer:      mydomaincontroller
Description:
There are multiple accounts with name MSSQLSvc/mydbserver.mydomain.com:1433
 of type DS_SERVICE_PRINCIPAL_NAME.

I did find this:  
dn: CN=Administrator,CN=Users,DC=mydomain,DC=com
changetype: add
servicePrincipalName: MSSQLSvc/mydbserver.mydomain.com:1433

dn: CN=MYDBSERVER,OU=Servers,DC=mydomain,DC=com
changetype: add
servicePrincipalName: MSSQLSvc/mydbserver.mydomain.com:1433
servicePrincipalName: HOST/MYDBSERVER
servicePrincipalName: HOST/mydbserver.mydomain.com

The sql db is running under local system account.
I am unsure how to determine the incorrect entry and how to remove it.  Does anyone have a recommendation?  can someone please explain the first dn entry?