My scroll wheel on my mouse only scrolls down, but not up. I tried updating the Logitech Software and everything! It doesn't scroll up on every program, not just chrome or anything. I am using the Logitech G303, but before you ask if its a hardware problem, I know it's software. I bought this new mouse for games, but also because the scroll wheel on my old mouse didn't work. I thought it was broken but clearly not, because the new one has the same issue.