To reproduce: - Add a scrollable panel wit other controls in a form. - Show the form using the ShowDialog method. - Scroll to the bottom the close and show the form again - You will notice that the scrollbar is not shown and the controls at the top are not visible. Workaround: Protected Overrides Sub OnClosing(e As System.ComponentModel.CancelEventArgs) MyBase.OnClosing(e) RadScrollablePanel1.VerticalScrollbar.Value = 0 End Sub