How to I add an additional mailbox it outlook 2002 by going to tools/email accounts and hitting the add button and selecting the mailbox? When I do it that was it loads up but then when I go into my Outlook folder and select that mailbox I get, "Unable to display mailbox. However if I just go to file and open other user's folder and select that folder then I can get in. Thats not how I want it. I want to have it set up under Outlook Today the same way my email box is set up and by setting it up the way I describe it in the beginning.