Saving your Outlook shortcuts

Outlook has a handy feature in the navigation pane: It let's you save shortcuts to often-used folders.
But I noticed that sometimes these shortcuts disappear (I suspect after an automatic update, but MVP says that cannot be true).
My system administrator has searched for a solution. You cannot make them disappearance-resistent, but you can make a backup of
C:\Documents and Settings\(username)\Application Data\Microsoft\Outlook\(profilename).XML.
Now, if you lose them again, simply restore this xml file from its backup location.

A related tip is to reset your navigationpane entirely (should you want that): Start | Run | outlook.exe /resetnavpane.