Has anyone had any issues implementing a second domain controller into an existing DSfW setup..

my first domain controller went perfectly, users can authenticate to it and i can join the domain with no issues...

when i come to adding a second domain controller i get some strange errors:

Start of DSfW installation and provisioning

>>> Removing old machine account (if necessary)
make: [replica_join] Error 32 (ignored)
>>> Removing old keytab (if necessary)
>>> Joining this machine to the domain
Created domain controller account <CN=LONDS,ou=Domain Controllers,dc=uk,dc=wropen,dc=com>
Failed to add server object for LONDS: No such object
Rolling back object <CN=LONDS,ou=Domain Controllers,dc=uk,dc=wropen,dc=com>... Success
make: *** [replica_join] Error 32

Thu Nov 13 16:16:09 GMT 2008
End of DSfW installation and provisioning
Thu Nov 13 16:20:20 GMT 2008


Start of DSfW installation and provisioning

>>> Removing old machine account (if necessary)
make: [replica_join] Error 32 (ignored)
>>> Removing old keytab (if necessary)
>>> Joining this machine to the domain
Created domain controller account <CN=LONDS,ou=Domain Controllers,dc=uk,dc=wropen,dc=com>
Failed to add server object for LONDS: No such object
Rolling back object <CN=LONDS,ou=Domain Controllers,dc=uk,dc=wropen,dc=com>... Success
make: *** [replica_join] Error 32

Thu Nov 13 16:20:28 GMT 2008
End of DSfW installation and provisioning

any clues ??