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I am sad to say that my Mighty Mouse has halfway died as well, unless someone can tell me how to get the middle button working again. If I have to disassemble the thing, I'm better off getting a new one.

*sigh*
 
I followed the instructions you guys have had hear to attempt to clean the ball to make it roll again. It has worked, I say it is at 95% performance.

I hate this thing, but glad it started working again.

Thank you :)
 
I have a solution

I'm addicted to the Mighty Mouse. I found a way to fix the trackball that doesn't require disassembly. Get some double-stick tape, and put a piece of tape on your desk. Turn the Mighty Mouse upside-down and run the ball along the double-stick tape for a minute. Run it in all four directions (up/down, left/right) and try moving in circles. This fixes the problems every time.
 
Clean That Mouse Ball

We have about 20 macs in our office and the balls often jam up. They can always be cleaned in seconds in my experience by spraying Foamclene onto the ball, leaving it for about 15 seconds and then wiping it all off with a lint free cloth - making sure that the ball is rotated a lot when the cloth is moved over it.
 
My first mighty mouse roller ball went out in less than six months of use. I simply took it into the store (went in on my lunch, only a block away), did the girly hair twirl and the guy just took a new one out of the box and swapped it out for me.

Alas, might mouse two is giving me connectivity issues. Grrr...
 
I just wanted to share a great experience replacing my mighty mouse, with the scroll ball problem. I tried to fix the problem with some of the advice offered in this thread, with no luck. Called AppleCare, and after a few minutes on the phone, the CSR sent me a new mouse overnight. Way to go Apple! New unit is working as it should.
 
Wow! The printer paper trick worked perfectly. I'd previously been cleaning it with a damp cloth and it still wouldn't scroll down. Now it works great. Thanks for the tip!
 
I have had the problem with my mighty mouse that it would scroll every which way but down. All I did was rub it vigorously on a pair of jeans for about 1-2 minutes and it was working again like brand new.
:apple:
 
Shiva

Hey, Thanks for the Information ! it works.

I took two drops of after shave lotion and dropped it on the track ball and turned it upside down and rubbed it against a flat surface with a small piece of cloth beneath it.

1) moved left 10 times
2) moved right 10 times
3) moved Top 10 times
4) moved bottom 10 times
5) moved Clockwise 10 times
6) moved Anti Clockwise 10 times

During this process you will find some dirt coming out. That the culprit there, causing the problem.

Once again do it with plain water to remove the acid stain from your mouse.

Thats it !

Caution: Do it on your own risk !
 
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