That's controlled by the Tooltips setting. In Word 2007, Office button -
Word Options - Display tab - Show document tooltips on hover.
In Word 2003, Tools - Options - View - Screentips.
In both cases, you'll lose all screen tips, not just the hyperlink ones. So,
if you hover over footnote reference marks, comments, etc., those will no
longer display their respective contents, either.
--
Herb Tyson MS MVP
Author of the Word 2007 Bible
Blog:
http://word2007bible.herbtyson.com
Web:
http://www.herbtyson.com