Thanks for the reply.
Repeating the data source definition does not seem to work. The new fields are not added into the list of fields in the field "tree".
As for manually editing the files, this is currently our only option. But the ultimate form designers will not be very technical people, and I was hoping there was a simpler way to do this.
I must say I am puzzled. Doesn't this sort of scenario happen a lot? Shouldn't there be a standard way to "reload" a data source? Once you have designed a form based on a web service, what are you supposed to do if the web service definition changes?
Eli