If form two isn't modal than the code in a command click method continue to execute after do form.

>I have a form(form one) which calls a second form(form 2) that has a moverlist box using the moverlist box located in the gallery.
>
>The last six lines of code a command click method on the first form look as follows.
>
>If thisform.xxxx = 1
> report form yyyy preview
>else
> do form two && this one contain the moverlist box
>endif
>close data
>
>
>If form two code is invoked, Form two opens. The first thing "form two" requires is to select items from a moverlist box. In the load method of "form two", I open several table. Somehow while selecting items in the moverlist box the tables are closed and the program bombs. It seems the "close data"
>command in "form one" is the culprit. If I comment out the "close data" in the click event of "form one", the tables remain open and the program works fine.
>
>How is it that the moverlist box activates the "close data" commands in "form one"? I know the fix is the remove the close data in form one, but I was wondering why this happens?
>
>Anyone have an explanation?
>
>
>Thanks
>Gaylen Jungling