For the past couple of hours my mouse cursor has been moving by it's own, not like really long distances but more of just moving around a little bit in the area I have set it in. It's not that big of a problem but it gets irritating after awhile since I've closed about 3 or 4 tabs on accident by now and clicked on a wrong link a few times. I'm figuring there's a piece of dust or something stuck in there, if anyone else has had this problem could they tell me what's wrong or maybe tell me how to clean it if there is something in there.