Change your REPLACE ALL command as Borislav suggested. Alternatively you can use UPDATE command, e.g.

UPDATE Specs SET Choose = .F.

>Only the first record was changed back to .F. in the now CHOOSE field (not SELECT). The other records I had previously made .T. (or selected) did not cahnge; they remained as .T.
>
>Here's the code in the UN-CHECK ALL button:
>
>

>WITH ThisForm
>	REPLACE ALL SPECS.Choose WITH .F.
>	GO TOP
>	.SaveCancelStatus()
>	.Refresh()
>ENDWITH
>