version: 3.52
    procedure:
        1. start a game
        2. win the game
        3. quickly, while the end-level screen is being displayed, alt-tab to another application
        4. attempt to move the mouse to the four corners of the screen
            --> the mouse is unable to move over the full screen, even though Snood is not the primary-focus app
            --> although the end-level screen will normally not last long, because it moves on without user interaction...  the situation is different when alt-tabbed away, since the end-level screen is essentially paused at this point, until the user alt-tabs back