OK, now I wish that I could borrow the head-desk avatar from WayneS! :angry:
After getting fed up with verifying the parameters and parameter values over and over. I closed the procedure without saving it, opened it back up and it works perfectly. (!) 'Was running perfectly yesterday and I ran it without change this morning, but it balked. Anyway, the answer is a mystery.
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge. - Stephen Hawking