Terry,

FWIW my lowest level cCheckbox class I set the Value to .f. and always bind them to logical ControlSources and I've never seen the type change problem you are seeing.

>No, they're there merely to enable or disable the combo and textbox (this is if the user wants to filter the ensuing report by selecting and operator and/or family) - not bound to anything.
>
>Did not change their data type either.
>
>Never mind. This is not a problem, more of an annoyance and a mystery