I have the following simple form: <FORM method="GET" action="http://cm-29-94-14.nycap.rr.com/search"> Performer: <INPUT type="text" name="performers:required" value=""> <INPUT type="submit" value="Search"> </FORM> If I submit the form without filling in the input field I get an error code 500 instead of a "No input for required field" message. This is what ZServer spits out: Server Error: exceptions.ValueError, No input for required field performers<p>: file: /home/killer-whale/skip/src/Zope/lib/python/ZPublisher/Converters.py line: 114 Any suggestions? Thx, Skip Montanaro | Mojam: "Uniting the World of Music" http://www.mojam.com/ skip@mojam.com | Musi-Cal: http://www.musi-cal.com/ 518-372-5583