How do I set up a footer file name to update autmatically

[Ted]

In office professional XP i had set up a letterhead with footer using the
filename and it would update automatically everytime i typed a new letter.
Since purchasing office 2007 professional i cannot get the file name to
autmatically update. How do i go about setting this up in word 2007 so the
file name in the footer will automatically update when I use my form
letterhead

 

[Suzanne S. Barnhill]

You'll need a macro; see "The FILENAME field does not automatically update
when you open a document in Word 2002 or Word 2003" at
http://support.microsoft.com/?kbid=832897