Mailbox Titles...

Just curious if anyone here can answer what should be a simple question.

For some reason, I encounter some odd behaviour when adding additional
mailboxes to my Outlook 2003 SP1 profile.

When I add a mailbox, there are times that the mailbox displays as "Mailbox
- some mailbox", however, some mailboxes display as simply "some mailbox"
with out the "mailbox -" part. Does anyone have any clue as to why this
would be different for some mailboxes, and not for others.

I just checked to see if it had anything to do with the server which the
accounts are in, the storage groups the accounts are in, etc and found
nothing conclusive. I would appreciate anyones input.

Thanks.