I have a Windows Vista computer and there's something wrong with the mouse. When i try to click on something, the mouse does not click on it. Then when i'm not using the mouse, it goes out of control, clicking crazily at whatever it is set on. I can't even use the mouse. when i manage to start my computer, the mouse arrow is always set in the middle of the screen. Always. Please help, I dont know what to do. My mouse wont work properly.