This is caused by installing the UA Control Update for Office 2000.
The pop-up definitions and "show me" links were disabled to plug a
potential security hole.
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q262767
If you want to return to the original functionally then, at your own
risk, you can replace the *.ocx file with one from your Office 2000
CD.
--
Please post all follow-up questions to the newsgroup. Requests for
assistance by email can not be acknowledged.
~~~~~~~~~~~~~~~
Beth Melton
Microsoft Office MVP
Word FAQ:
http://mvps.org/word
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http://mousetrax.com/techtrax/
MVP FAQ site:
http://mvps.org/