>I DON'T GET IT.
>I put SET STEP ON right at the top of MAIN>PRG and compiled it, and it worked fine.
>Then I took the SET STEP ON off, and ran it and now it's working as expected.
>I DON"T GET IT.
>
>Is this a corollary of the old principle "when all else fails, reboot?"
>Geez, I had tried just about everything else.

That probably means that you have a compiled copy that was different being executed. Changing the code forced a recompile.

Tamar