>>
>>1. Does Load or Init of the form return .F. ?
>>
>
>There is NO code in LOAD or INIT method
>
>>2. Do you release public variable somewhere what has a reference to this form?
>>
>
>No.
>
>>3. Can you show the lines of code calling this Modal form?
>
>

>public oMyForm
>oMyForm = createobject("myformclass")
>oMyForm.show()
>

Try

oMyForm.Show(1) && to show it as a Modal form.