I've been experiencing this problem lately for the past two weeks. The mouse pointer shutters around the screen from time to time. (now becoming more frequently) Sometimes it'll freeze in one spot for a second before jumping across the other side of the screen, sometimes clicking and dragging items by itself or even double click and triple clicking itself. I use a wireless mouse and I thought maybe it was the mouse acting up, but I tried the mouse on a different computer and nothing, it works fine. Use that same mouse on my pc, the mouse pointer acts up. I used a different new mouse on my pc and the mouse pointer still shutters around.