When using a Radform in Winforms, if I maximize the form it now shows a thick border around the form. This border is transparent and obscures the edge of the form, all the way around. This happens in docking forms too, when floating and maximized. This only happens in Windows XP and Windows 7 - Windows 10 is fine (not tested on Windows 8). This has happened since the latest update - 2016 SP2. Before then this did not happen. Please investigate.