The Proof Client will open but immediately minimize to the Windows task bar.
The Proof Client will open but immediately minimize to the Windows task bar. It is not possible to maximize the application to the screen; it stays minimized. It may be an intermittent problem. Adjusting the shortcut compatibility mode or settings may help the problem but not solve it.
This may be an OpenGL problem related to the video card or video card driver. It is recommended to first try updating the video card driver, and if that does not help, replace the video card.