I've been having problems with my mouse lately, a couple, first when I used the wheel in the middle to scroll (which I do quite a lot), it goes all clunky, and it skips like from the middle to the end. Also it reaches the end of the page, sometimes I gotta go back up cuz it went all clunky, and it won't let me scroll back up, it keeps going up a little then down again. Secondly, when I'm doing that and have music on, the music goes like if it was a scratched CD, skips all over the place. Any Ideas? It's really annoying me.