>Hi,
> The modal form just "dissapear". I still able to see it's form caption in window menu. If I click it from window menu, then it will appear again. however, it won't be appear if i reclick the menu which do form.
>
>
>Any idea?
>
>Thank you

John,

May be your form shows in minimized state? Try put this.WindowState=2 in Form.Acitvate or Init. If this helps, comment this line and check Form's proprties.