Originally Posted by oatw13
I agree with the rest, you may just need more cleaning.
Incidentally, you can purchase just the ball, but you would probably have to do it online or at a specialty electronics store.
It's probably cheaper just to get a new mouse. :)
A friend typed in 'mouse balls' then clicked ' search.
He says he about laughed his head off at the answers.
He never would say just what the answers was.