How do I clean the apple mouse so that it can scroll down? My current apple mouse works fine for moving, clicking and scrolling down.  The scrolling functionality with the tiny ball on top is not working while going down.  I had the same issue back in 2008 at a different company with a similar mouse.  Does anyone know how I can clean the mouse?
My favorite movie on Apple’s support site is this gem on cleaning mouse balls! I also like using a clean white piece of paper to roll the mouse upside down on it. Do use the grey cloth if you'd rather not see what comes out.

The general cleaning info is nice too.