After sometime on the computer, the side scroll bar starts to move up and down all by itself. I do not touch the mouse or anything else. Its does nots matter what product I am in or even if on the internet. For some reason it just starts to scroll down the page of its own accord. If you use your mice and try to move back up the page to where you were it is difficult and it only takes over and scrolls back down again. I have no viruses and have adware. The only way to stop it is shut down the system and start again. HOPE YOU CAN ASSIST soon.