>I have an application ( a menu and a form opened ). When I exit application ( command CLEAR EVENTS ) I've got an error message "Can not access selected table". Can You tell why is that. Thanks very much. Phuong

It usually indicates that you have some combo/grid based on cursor. If it's really so, it's safe to fire in Form.Destroy event:
This.Mycombo.Rowsource="" or This.MyGrid.Recordsource=""