Thanks Sue,
I looked into Tools/Options/Mail Format/
and underneath Message Format, and a section that says:
Compose in this Message Format: HTML, Rich Text, Plain Text, there's a box
that I could check that says: Use Microsoft Word 2003 to edit email messages.
However, the box is grayed out, so I cannot select it. Is it protected
somehow? How do I get the box open for me to check it?