a question for you computer experts out there. Perhaps I disabled some function of my mouse? It seemed to happen when I was using my mouse left handed (not what you think). I was just leaning back in my chair facing right, so it's easier to use my left hand. And it's not like the button itself doesn't work. I can click and hold the middle mouse button and move the screen around as normal. But the scroll wheel doesn't work. I haven't tested it in games, but right now it's just not working in firefox.