Two suggestions here:
1. Follow the instructions at
<
http://www.dessci.com/en/support/TSN/TSN77.htm>.
2. If that doesn't help, download and install the trial version
of MathType (the professional version of the Equation Editor in
Microsoft Office). All features will be available for 30 days,
but the product will work indefinitely. After the trial period,
you will still be able to edit documents created during the trial
period, even if you used features that were disabled after 30
days. There is a download link on our home page (link in my
signature).
Bob Mathews (e-mail address removed)
Director of Training 830-990-9699
http://www.dessci.com/free.asp?free=news
FREE fully-functional 30-day evaluation of MathType 5
Design Science, Inc. -- "How Science Communicates"
MathType, WebEQ, MathPlayer, MathFlow, Equation Editor, TeXaide