My final complaint about the Logitech G3 Gaming Mouse is in regards to the scroll wheel. Since the mouse is specifically intended to be a gaming unit, the lack of side scrolling capability is forgivable, although a little irritating. The bigger problem that I had was with the stiffness, or amount of resistance, of the wheel. Because it requires a reasonable amount of force to rotate, I found myself accidentally depressing it when I scrolled, activating whatever function I had programmed. This did not happen all of the time, and after a short period I adjusted the enthusiasm with which I rolled it, but initially it bothered me.