mouse wont scroll down. Why?

Mighty Mouse stops scrolling down. Why?

I have the wireless mighty mouse I guess it is. Every so often it will only scroll up but not down. I cannot figure out why. Any ideas? Am I doing something wrong somehow?

I can use the little ball and it will scroll up but this is the second time it stopped scrolling down even though the scroll ball moves down.

ok figured it out. I used the handy search function and found how to clean it!!! Doh!

i have that issue too, what did you search for or can you tell me how ot clean it?