Hey guys, i play with mx518 but yesterday a friend give me an 1.1a to play a little, yesterday the mouse was ok I played whole day on it and the wheel bug showed up 4-5 times, but today i played for 15 min and the mouse bug did not stop, at cs I jumped whole time. Quited cs and go to the web, there while I'm scrolling down the scroll goes up and the opposite. Now the scroll stopped to work. I installed the drivers..it did not help. so plz help me. And btw the scroll click works