Any button other than joystick 2 making motor controlled by talon

[sthreet]

If I use any buttons other than the joystick's 2 buttons (named them left and right, 3 and 4 don't work; 3 and 4 or 7 and 8 don't work on the gamepad, named gamepad.)

Any idea why this would happen? One direction it doesn't work at all, the other it works but goes off and on and generally moves very slowly. Also tried axis one of the gamepad.