I was using my MacBook yesterday and I got a warning telling me that someone else is using your IP. The mouse started to be funny and not doing things that I wanted it to do. Then I just let it go and then the mouse started to move around going into my history, systematically opening folders and then I just hit the shut down button. Does anyone know of any solutions to this problem. It seems that somehas broken into my computer and has taken control Thx if someone can tell me something to do.