Problem re-certifying certifier id

I have a client with Domino 6.5 on an AS/400 iServer. He is trying to re-certify his cert.id file.

When doing the Certify command and choosing the cert.id file, he gets first:

The public key that is being used does not match the one that was certified.

Then,

The name cannot be registered. More than one entry was found in the Domino Directory with this name.

How do I best resolve both of these issues?

Thank you!

Michael

Subject: Problem re-certifying certifier id

Is this the root level O or and OU cert file?

Subject: RE: Problem re-certifying certifier id

This is the root level Certifier ID, and there are no other OU’s on their Notes domain as far as I know.

Michael