>Bruce,
> Yes i try in the caller form use
>DO Form calledfrm Name ocalledform
>with thisform
>
>But how to reference back from the called form to the caller form ?

I see you've gotten things working...but to answer the question, it goes like this:

Create a custom property in callerform: "ocalledform" (and set the property = .NULL when not in use is a good idea)
Then launch with:

Do Form calledform Name thisform.ocalledform

Now calledform is an "object" or ("child") of callerform, so

1) when in callerform, reference ocalledform with Thisform.oCalledform.myobj...

2) when in calledform, reference callerform with Callerform.myobj...

You can use TYPE and ISNULL to check existence if needed...