Active directory questions

Hi there

I have a few questions around Active Directory, having not much experience with regards to such matters, I would appreciate your advice and feedback:

1.      There are 2 x 2003 R2 SP1 in the environment. According to replmon,  it seems that replication occurs between these 2 DCs. However, on DC2 there is a series of FRS Journal Wrap errors (event id 13568) dating back to January..... According to the event log,  its a matter of making an enable journal wrap automatic restore registry change to resolve the issue. Is this correct? Other sites were talking about non-authoritive restore of AD on DC2??

2.      Upon running DCDiag on the environment, i noticed that there is a failure in the VerifyEnterpriseReferences test. It is indicating that there are missing expected values for a server called DC3. I have checked AD Sites and Services, Replmon, NTDSUTIL, there are no references to this server. However there is an AD Computer object for DC3 under the default Computers OU, and its role is a Domain Controller. Can I just simply delete this? There is also a NS record for DC3 in the reverse lookup zones.

Starting test: VerifyEnterpriseReferences
The following problems were found while verifying various important DN references.  Note, that  these problems can be reported because of latency in replication.  So follow up to resolve the following problems, only if the same problem is reported on all DCs for a given domain or if  the problem persists after replication has had reasonable time to replicate changes.

            [1] Problem: Missing Expected Value

             Base Object: CN=DC3,CN=Computers,DC=demo,DC=co,DC=za
             Base Object Description: "DC Account Object"
             Value Object Attribute Name: serverReferenceBL
             Value Object Description: "Server Object"

             Recommended Action: Check if this server is deleted, and if so clean up this DCs Account Object.

             
            [2] Problem: Missing Expected Value

             Base Object: CN=DC3,CN=Computers,DC=demo,DC=co,DC=za
             Base Object Description: "DC Account Object"
             Value Object Attribute Name: frsComputerReferenceBL
             Value Object Description: "SYSVOL FRS Member Object"

             Recommended Action: See Knowledge Base Article: Q312862

             
         ......................... LPCPTSRVGC01 failed test VerifyEnterpriseReferences

3.      The Replmon report shows that there are a number of DELETED SERVERS listed under the Current Transitive Replication Status. Suspecting that this may be due to incorrectly removed DCs I proceeded to check in NTDSUtil > Metadat Cleanup..... These servers are not listed there. Is this to be noted as a concern?

Jafar54