Thanks for your detailed reply.

You described a lot of stuff I didn't know. Thanks very much for
the detail.

I did find the problem by "luck". Somehow I had referenced a variable to a
bogus value. Why the program didn't crash at this point surprises me. I guess the "Fox" is a like good GI .... never give up, no matter how deep the muck is.

Again , thanks for your Prime-Time.

the deane