I've had my Mighty Mouse since November when I got my Mac. I've had the scroll ball stop working a few times, but I've manage to fix the problem by cleaning it by pushing down on a piece of paper and running the ball over it. But in the past few months, the ability to middle click with the scroll ball has failed. The mouse still scrolls up and down, but I can't middle click. When using Safari, I have to hold down Command to open a link as a new tab as apposed to simply clicking the scroll wheel. I also use a graphics program that required a three button mouse. Without the 3rd mouse button, I have to use this awkward keyboard combo that really cuts down on productivity. From what I understand, Apple won't give me phone support because I'm over the 90 day limit. But would they allow this as an exception because Mighty Mouse problems are very common? The nearest Apple Store is a few hours away and that's too far to go to get a mouse replaced.