It's a bug. See mskb #Q136669 BUG: Grid Activation Causes Form to Move If Form Title Hidden.

>Hi All,
>
>I have problem with grid control on form.
>
>I set TOP property of form is -10 (minus ten), and I have a grid on that form. I run form, when I focus on grid, the form automatically move below and change it's TOP property to 0. Why that? Some one please help me solve this problem.
>
>Thanks in advance.