One annoying aspect of Microsoft Outlook is that its user interface (UI) doesn't always behave consistently. For example, open the Inbox and Calendar folders in separate windows. Then, close Outlook by clicking File, Exit and Log Off. When you restart Outlook, the separate Inbox and Calendar windows reopen. Now, try the same operation with the Inbox and a Microsoft Exchange Server public folder in separate windows. When you restart Outlook, Outlook doesn't remember that the public folder was open and instead displays the Inbox folder in the extra window.

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