It appears someone has added the errant content to Word's 'Normal' template. To fix it, you will need to open the template and delete that content. For instructions on how to do that, see:
http://office.microsoft.com/en-us/wo...005189267.aspx
PS: A reply might have been posted sooner had you posted in the correct forum. You posted your query in the Office forum, which has a notice at the top telling you NOT to post Word questions there.