>I call Thisform.business object.OpenDataDoSomethingCloseDataReturnValue() anytime after form's INIT.
>
>Life is bad.
>
>Grid has reconstructed and is now useless.
>
>There is a clue in there somewhere but I am failing to see it.
>Can anyone help me with this.

Grid reconstruction happens when the table it is tied to can no longer be found. Does the OpenData part of your function (re)execute an SQL query, or just refresh an existing view? The former will create a new table and force grid reconstruction.

Chris.