The eassiest way to do this is by opening a lot of other folders ;-)
Recreating the mail profile also does the trick.
The entries are stored in the registry but that key hasn't been designed for
manual editing and you could easily end up corruping your mail profile.
Anyway; the key is located here;
[HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows
Messaging Subsystem\Profiles]
--
Robert Sparnaaij [MVP-Outlook]
www.howto-outlook.com
Tips of the month:
-What do the Outlook Icons Mean?
-Create an Office 2003 CD slipstreamed with Service Pack 1