Cannot Replace Design

Have one user who was just upgraded from Notes 7 to Notes 8.5. He is now on the 85 mail template but when we try to do a replace design on his mail file, we receive the following message.

You cannot update or delete the documents(s) since you are not listed as an allowable Author for this document.

User has editor access to his mail file.

Subject: Private View or Folder?

Total guess, but private Folders etc are the only thing that users can create.