All right, so I tried it again after adjusting some centering knobs on the side. It's a Gravis Mark VI Analog control, and it's the only one I have for the Apple, so I can't test any others to see if it's the joystick that's the problem. After trying some other games, I found out the directional stick works, but the buttons, the one on the stick and two on the side, are not working, or at least don't seem to be. However, I don't know why the stick would work and the buttons wouldn't. There are seemingly adjustment knobs for the buttons, do they need to be set a certain way?