I've used all of the methods, short of taking the Mighty Mouse apart, that have been described in these forums. Now, none of them works for more than a few minutes. It's true: this question is asked in the forums about 5 times a week. Doesn't that tell us something? This product is a piece of junk. I mean really, pay that much money and it requires more maintenance than a vintage Jaguar! I am totally an Apple fanatic (and even a small stockholder), so I am always inclined to give the company the benefit of the doubt. Keeping the Mighty Mouse working should not be a part time job; it's a MOUSE for goodness sake!!! Apple has had plenty of time to work this out: the scroll ball has been an issue since day one.