I've been experiencing some high pitched squealing on an upgrade I just did and have isolated the sound to my power supply. The noise is intermittent however, rears its ugly head whenever I scroll up ...

I have a Razer Abyssus mouse and my scroll is not working as intended - when I try to scroll down for example, it tries to scroll both ways simultaneously, it goes down several lines then up several ...

As described earlier, a middle-click changes the mouse pointer to an arrow with a vertical scroll bar. Before trying the following suggestions, click anywhere on your screen to see if the problem ...