>> my MM's scroll
>> ball is virtually unusable: it only works consistently scrolling up...I can
>> get it to scroll down only after dabbing the scroll ball with alcohol and
>> then inverting the mouse and "scrubbing" the scroll ball against a piece of
>> clean paper. But that "remedy" only lasts a few hours, at best.

> Putting alcohol on rubber is a bad idea, because some types of rubber
> actually decompose when exposed to alcohol. They can become sticky and
> tacky as a result of absorbing the alcohol. And that means they'll just
> gather *more* of the dust that clogs them up.