I need your help.  I am using Microsoft Office Word 2003.

I am a secretary who types correspondence most of the day.  After I complete
the letter and go to address the envelope by clicking on TOOLS, LETTERS AND
MAILINGS and then ENVELOPES AND LABELS, my letter address appears in the
address box but the font defaults to something DIFFERENT from the font of my
letter.  I cannot use one font in the letter and a different font on the
envelope!  I have tried to modify the default in FORMAT, STYLES AND
FORMATTING, then ENVELOPES.  The modified formatting will remain for awhile
and then it reverts back to the original font—that we, as a department, don’t
use!  Can you tell me how to change the default so that it stays until I
change it to something else?  I have tried everything!  Thank you for your
help!