That will happen as long as the document contains tracked changes. It's
basically there to protect you--to prevent you from thinking you can send
the document to someone without their being able to see the tracked changes.
The current behavior is based on an earlier Word version (pre-Word 2003, I
think) in which the on/off display of tracked changes was remembered per
document, and people were sending clients changes (sometimes containing
embarrassing comments) without being aware.
So... to keep them from reappearing each time, you'll need to accept or
reject the changes, then turn tracking off.
--
Herb Tyson MS MVP
Author of the Word 2007 Bible
Blog:
http://word2007bible.herbtyson.com
Web:
http://www.herbtyson.com