My mouse won't scroll up

Click here and follow the instructions if applicable.

(26282)

If you have a Mighty Mouse or another applicable mouse, follow the instructions anyway.

(26284)

my mouse just did the same thing and i couldn't fix it,
so i pressed both the buttons in and held it upside down whilst rotating the ball.

now it works fine.

I've got the same problem. It used to work. The mouse is not dirty. It just won't scroll up. It scrolls down, side to side, and on some web pages it will scroll up if I use a diagonal motion. But that only works on some web pages. This is frustrating.

I've checked my mouse settings, I have it set to scroll vertically and horizontally. But for the life of me I cannot figure out why it will no longer scroll up.

I have the same problem, except mine scrolls up, just not down. Have checked all settings, all users. Mac is 2 months old - wireless mouse. Any more ideas?

I'm having the same scrolling problem on two iMacs. One was purchased in August and the other in October. The wireless mouse that came with my wife's iMac suddenly stopped scrolling up. I've tested it on both iMacs. It has been cleaned and the batteries are not low. It's a mystery to me.

The same thing happened to me with my 2 week old Imac. Heres what I did and this worked for me:

-turn the mouse updside down
-notice where it is lit up
within that small oval area where the light is, there is a small plastic piece that sits vertical
-GENTLY push on that small plastic piece one way or the other, likely it will move a tiny bit, then STOP.

The scroll should now work both ways.

Its possible during normal use of the mouse, perhaps pressing the mouse down too hard when you scroll or slide the mouse around on its pad, that little piece gets moved just slightly and then it doesnt scroll correctly.

When you use the mouse, do not press down on it when you slide it around and hold it still when you click.

You say it's not dirty. How did you know? Did you try cleaning it?

Dampen a towel with something mild like screen-cleaning solution--but not too much. Hold the mouse upside down, and use the towel to roll the ball every which way til Tuesday, repeatedly. Repeat with a dry, lint-free towel.

This is a very common problem, and this procedure often works.

I have had the same problem with the Wireless Apple Mighty Mouse. It starts as not scrolling one direction and eventually will not scroll at all with the track ball. I called Apple support and tried all their fixes. Apple finally sent me a new mouse, which worked great for a few months and is now beginning to lose functionality again. I am calling them today to get another new mouse. It seems this may be a design or manufacturing problem.

I have tried all the fixes listed on this discussion to no avail.