Wireless Mighty Mouse, originally uploaded by Lazyllama.
I’ve got a wireless Mighty Mouse for use with my Macs. Very nice it is too.
After 3 months of use the scroll ball on top stopped detecting upward movements so I could scroll down pages but not scroll back up.
Blowing in to the hole didn’t fix it, but pushing hard on the ball while rolling the ball around fixed it.
Use kitchen towel. Push the ball in with the towel and roll it around in all directions for a couple of minutes. Works like a charm 🙂
Thank You.Now works like new.
For detailed instructions on opening up a Mighty Mouse in order to give the ball a thorough cleaning, try http://web.mac.com/karelgil/iWeb/MacWebSite/MightyMEng.html
It does involve some fiddly operations and you then have to super glue your mouse back together.