I am 98% sure the box is not actually there physically irrespective of its color and that's why I can't see it let alone click on it.
I was told that if I had any "hardware" plugged into the USB ports, the "fly w/ the mouse box" will not even come up. I do have a mouse plugged in, which is precisely the device I want to use to fly with. I also have a USB memory stick plugged in. I definitely have nothing else plugged in though. No joysticks or anything. This is Ubuntu Linux.
Please advise. I urgently want to play and can't control my plane!