CAUSE
This behavior is by design. Microsoft Outlook 2002 provides some of the more popular holidays, but only through to the end of the year 2005.
RESOLUTION
Microsoft has released Holiday update files for U.S. English.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
910619
Description of the update for Outlook 2002: February 1, 2006
WORKAROUND
Additional holidays are available from some third-party
companies.
You can modify the Outlook
holiday file to create your own updated list of holidays. To do so, follow the
directions in the "Resolution" section of the following article:
280976 Foreign national and religious holidays incorrectly added in US English Outlook Calendar G - M