The little scroll wheel/ball on my Mighty Mouse gets lazy every few weeks and only lets me scroll in one direction. Sometimes only up, sometimes only down. Side to side never seems to be a problem.

A simple fix I learned about to solve this problem meant I didn’t have to keep phoning Digicape to complain about repeatedly being sold bad mice…

Simply turn your Mighty Mouse off (by sliding the cover at the bottom closed), turn the mouse upside down onto a piece of paper and move the mouse around putting pressure on the scroll wheel so that it makes solid contact with the paper.

As you move it around you should see it leave a gorgeous trail of finger dirt and residue. Depending on how bad it is, you may even be able to spell your name before it’s clean.

The video below demonstrates the process:

Apologies for the poor quality. I whipped this up quickly on my iPhone 3GS.