My apologies, I read that LimitToList = yes restricts the user  to
selecting only from the drop  down list. After your message, I have
just tried the combo box in ACCESS and you are right that it
functions the same as MatchRequired = True.

I am now asking how does one get the combo box to function like a
drop down list  such that the user is completely restricted to make a
selection only from the drop down list.