Mac mouse sucks, except the 360* scroll bar. Well visually it's nice, but when comes to work it's just not ergonomic. So I purchased Razer Krait. But I just realized when I plugged it, the movement is just weird. I don't know how to explain but it's the 'feel', which is much better in Windows. Worse, there's no mac driver for this mouse. Desperately looking for solution, I found this software.