Article ID: 2764000 - View products that this article applies to.
Microsoft Office Outlook 2007 or Microsoft Outlook 2010 stops responding (hangs) if you have 200 or more shortcuts in the Navigation Pane.
If you experience hangs because of this limitation, reduce the number of shortcuts in the Navigation Pane to less than 200.
Outlook stores the Navigation Pane settings in a file on the disk. Shortcuts are included in the Navigation Pane settings.
For more information about the Navigation Pane settings (.xml) file, view the following Microsoft websites:
Where does Microsoft Outlook 2010 save my information and configurations?
Where does Microsoft Office Outlook 2007 save my information and configurations?