OCS Conversation History saved on the wrong mailbox

These days I've been working on an issue related to the OCS Conversation History, and where it was saving its instant messaging records. The user in case has an additional mailbox set in Outlook and Communicator was saving all conversation histories in the additional mailbox, which can cause several problems, since the users conversation were being stored into a shared folder.

After several frustrated attempts of solving the problem, a teammate of mine found out a solution, and here it is:

1. In Communicator, go to Tools > Options...
2. In Office Communicator - Options window, uncheck Save my instant message conversations in the Outlook Conversation History folder;
3. Restart Communicator;
4. Remove all the additional mailboxes as explained here;
5. Restart Outlook;
6. Check again "Save my instant message conversations in the Outlook Conversation History folder" in Communicator > Tools > Options;
7. Chat with someone and double check whether the conversations are being stored in the correct folder;
8. Add the secondary mailboxes back, as explained here;
9. Check again whether the conversations are yet being saved at the correct location.