Mighty mouse scrolling stops working - MacFixIt "Apple recommends taking a lint-free cloth and lightly moistening it to clean the surface of the mouse as well as the mouse enclosure. If the mouse has a noticeable piece of dirt that can be felt in the mechanism, users are recommended to turn the mouse upside down and roll the ball against the cloth rapidly until the dirt dislodges." in Public bookmarkswith applehardwaremacmousetips