Heyas! I got a razer copperhead (tempest blue yummy) to use with my macbook. (primarily left handed mouser and the right-hand design of the logitech g7 and the **** battery life wasnt ideal..) This one has four buttons on the sides, two on each side. The two buttons on the right side do not work. USB Overdrive doesn't even realize that there are buttons there, while it works just fine with the buttons on the opposite side. What to do? By the way, the buttons work just fine in Windows..