Ed,
Your version of Word? Not sure about earlier versions, but extra spacing
between words is identified with "Check Grammar As You Type" in Word2003.
As an alternative, you could do a search and replace for errant double space
between words. Use Edit>Replace>More>Use Wildcards.
Type ([0-9A-z]spacespace (meaning two taps on the spacebar) in the find what
field and
\1space in the replace with field. This should catch most of your errors.

Signature
Greg Maxey
A peer in "peer to peer" support
Rockledge, FL
To e-mail, edit out the "w...spam" in gmaxey@whamspammvps.org
> I would like Word to tell me if I accidently put more than
> one space between words. It checks for wrong spacing
> between sentences, but not between words.