Thanks Don. Yes 'When accepted, set focus' is on the Settings tab.
I thought that what this might mean was to choose the field that is the next entry field. So I did this but after tabbing off the preceding field (to the read only field) the cursor vanished and certainly didn't end up on the filed I nominated. Subsequent tabbing saw the cursor going thru fields from the top of the form.
Basically, I don't understand what ' When accepted, set focus' means and what you put in the field - and do you do this for all of the read only fields.
Thanks
Keith