>Richard,
>It boggles my mind as well. The only thing I can figure out is that the debugger is caught in the Oforms object - I keep running into a 'Read Events' command in the debugger. However, I haven't found any problems with the 'do form' mode of calling a form - all the VMF substrate is still available.
>
>And for a single debugging session it's workable - afterwards just go back to the 'standard' call.
>

I saw Speedie's demonstration of VMP a couple of years ago. One of the problems he was trying to resolve was the ability of the user to select menu items as a sort of way to get around field validation. He suggests using the Oforms as well as a Oprgs(?) call to ensure that the field is validated prior to calling another screen or a program. I believe he makes that validation call available. Perhaps the way to go is to wrap your "DO FORM" calls with an IF ... ENDIF that calls that validation routine.