There are two possible approaches:

1. You can force the Enter key to function the same as Tab: see "WD: How to
Code ENTER Key to Move to Next Field in Form" at
http://support.microsoft.com?kbid=211219

2. You can put the form field in a table cell with row height set to an
exact amount. This doesn't prevent users from pressing Enter, but most of
them will get a clue when their text starts to disappear.

--
Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
Word MVP FAQ site: http://word.mvps.org
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"Russ T" wrote in message
...
Is there a way to block users from entering paragraph
marks in text form fields in Word?