<DIV>I don't have "Other Users" on my outlook but I would assume that it refers to another account with a seperate database. If you're on Outlook 2003 and XP go to Docs and settings, Application data, Outlook and there you'll find the data files. If you delete the one that relates to your other user you should be able to close it then in your folder list. Application data is a hidden file though so you'll need to "view hidden folders" first.
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<DIV>Hope this helps but you hadn't had an answer when i looked so I thought this might be better than none.