[Oh Cubeoid]

I am using an apple mouse with the little scroll button, until a few days ago it scrolled up and down in firefox or the finder now it doesn't want to scroll down and only scrolls up, any ideas of how to fix this?

[ghporter]

The problem you're encountering is the dreaded "Mighty Mouse Scroll Problem." It comes from that tiny scroll ball getting dirty. A quick search on Google for "clean Mighty Mouse" will get you detailed instructions for getting the thing clean. Unfortunately, it's an ongoing problem-I wound up buying a Magic Mouse (which I love) because I got down to disassembling my Mighty Mouse to get it clean yet again and wound up breaking one of the flex circuits in the process.

Root cause: the scroll ball is identical in design to ball mouse balls, and it gets dirty just the same. Great idea, but the world conspired against it.

[Oh Cubeoid]

Fixed it. A search suggested I flip it around a roll the ball vigorously and it worked.