So, when I am using my mouse (wired mighty mouse) it goes spastic on me. All of a sudden it will dart off to the side of the screen when my hand/mouse is still. It is really hard and annoying to get any work done on my computer with this issue. It almost seems like the cursor/arrow is made of metal and the sides and corners of the screen are magnets and it attracts the cursor to the side. When I called Apple Care, they tried to fix my mouse and ended up sending me a new one. The new one is doing the exact same thing. Any ideas?