Hi!

Just as I said - put SET STEP ON in the BeforeRowColChange event of the grid, run the form, reach the moment when you press "ADD" button. THen press "ADD" button and wait till program stops in that event. Open the Call Stack debugger window. You will see the chain of procedure and event calls. Just click on the procedure called BeforeRowColChange event. You will see exact line of code that caused grid reconstruction. It might be a trigger or other stored procedure or some functions that runs during updating/inserting of data as trigger or as function for default field values/field validation.

HTH.

>I have a add button and textboxes on the upper portion of the form. The grid is in the lower half.
>
>When the add button is pressed it adds a record and does a tableupdate() right after executing this command the grid becomes blank, but before the command the grid only contains the new record.