magic mouse scrolls on its own

Discussion in 'Mac Accessories' started by tucker3434, Feb 3, 2010.

  1. macrumors regular

    Dec 23, 2009
    Every once in a while my cursor will flash on the screen and it will scroll to the bottom of the page I'm viewing. If I scroll up, it goes right back down. It quits after about 30 seconds. What's going on?
  2. thread starter macrumors regular

    Dec 23, 2009
    Nobody has had this problem? I've had it happen on two separate Imacs in two separate locations.
  3. macrumors 6502

    That happened once to me, but I just cleaned the Magic Mouse and then it never happened again.
  4. macrumors newbie

    Dec 2, 2010
  5. macrumors newbie

    Oct 26, 2007
    uncontrollable scrolling and beeping

    I often experiencing occasionally uncontrollable scrolling and often beeping and the cursor moves around on its own. I have disconnected the mouse and keyboard and used different ones but the same thing occurs. I can see no pattern to the problems so what could this be?:confused:
  6. macrumors 6502


    Jan 17, 2010
    NW Oregon
    I have been having this problem for almost a year. I've posted about it in different threads here and nobody has had any idea what to do with it.

    Since my last post about it, I've learned a few things. First, after a trip to an Apple Store, they were ready to replace the motherboard and bluetooth board in my 17" MBP because of the problems. But then there was a warranty issue and that never happened.

    Being thoroughly pissed, I bought a Windows machine and was ready to be rid of all things Apple. That lasted about fifteen minutes before I boxed up and returned the Windows machine.

    So I went out a few days ago and got a new 11.6" MacBook Air. I thought, cool, I can finally be rid of this damn scrolling problem. Guess what? IT STILL EXISTS, even on the new machine!

    I know it's not the mouse itself, necessarily (or if it is, it's a hardware flaw). I destroyed my first Magic Mouse last March one day when I was already pissed off and it sent me over the edge. So I bought a new one, and lo and behold, the problem still existed.

    Back to now. So yeah, my new MBA is doing it too. I'm not sure what to do. It's not doing it as often as on my MBP (yet). I was unable to reproduce it the day I had the MBP at the Apple Store. I think the machine has to be on for a while before it does it.

    What's really bad is it makes using Google Maps almost completely useless. Almost any mouse movement results in the maps zooming in and out. I LOVE this mouse, but I hate it too.

  7. macrumors newbie

    Jan 7, 2011
    I was about to write that I've had the exact same problem, as well as constantly flipping pages back and forth while using the internet...

    However, I had opened "mouse" in system preferences before reading this post and got side tracked. I was actually trying to look up what scrolling with or without inertia meant and hoped that would be the problem - and well I think I've fixed the problem. You simply have to change it to 'without' as inertia means momentum. When I took it off and tried google maps, no more craziness! I can still zoom in and out, it just doesn't fly around uncontrollably!

    I hope this helps - I have been pretty close to throwing my mouse as well!
    : )
  8. macrumors 6502


    Jan 17, 2010
    NW Oregon
    So the bug appears to be in the Inertia code. Thing is, Inertia for me is what I LOVE about the Magic Mouse, or the Mac in general. Without it, it's no better than Windows.

    FWIW, I recently experienced the "random scroll" bug when using just the touchpad. It was brief, but I also don't use the touchpad often. So I suspect this bug is amplified by the Magic Mouse. Maybe one day Apple will fix it.

  9. macrumors 68000


    Jul 2, 2009
    What did you expect? It's a "magic" mouse. It magically scrolls by itself. ;)
  10. macrumors 6502


    Jan 17, 2010
    NW Oregon
    Update... it's not the inertia code that's buggy. It's the entire scrolling routine.

    I was just in Google Maps trying to plan a motorcycle ride today, and it was doing that damn zoom thing, so I opened Prefs and disabled Inertia, went back to using it. It was better, but after a few minutes it did it again. Frack. So I disabled scrolling entirely, and that solved it. Then I turned it back on when I was done.

  11. macrumors newbie

    Feb 11, 2011
    I suppose nobody found a good solution for it, yet?

    I have exactly the same problems and found a clue on Live View from Better Touch Tool. It looks like a mouse sends some random signals every 2 seconds and some of them are recognized as a scroll.

    Short screencast:

    Unfortunately I don't have any solution for it. I'll try to get a response from Apple support.
  12. macrumors regular

    Oct 25, 2009
    Same problem when using the internet, it sucks especially when filling out forms and it goes back to the previous page.

    Fingers crossed somebody has a fix otherwise I am thinking of getting a logitech mouse.
  13. macrumors newbie

    May 23, 2011
    My solution

    I got the same weird problem with my brand new 21" iMac. A blinking cursor, the magic mouse scrolls on its own while about long 30 seconds.

    After three days hamming the mouse against the table, I accidentally turned off the wireless keyboard. It solved the problem.

    So stupid...
  14. macrumors newbie

    Sep 30, 2011
    Had the Same Problem

    I had a similar problem where the mouse pointer would disappear and the page would automatically keep scrolling to the bottom in an endless loop. I tried putting in new batteries in the wireless keyboard, and that seems to have worked so far. This error almost seems like it's caused by the space bar getting stuck, so if the battery swap doesn't work, try cleaning out your keyboard. Sometimes dust, crumbs, etc can cause problems. Try cleaning the keyboard with a can of air.
  15. macrumors newbie

    Jun 29, 2012

    Finally! This worked for me! The uncontrolled scrolling was getting worse and worse ... changed batteries, got new keyboard, lost my mind (ha ha). Thank you so much for posting the solution to this incredibly annoying problem. :)
  16. macrumors regular

    Jul 18, 2011
    Try cleaning the top. If some oil or liquid gets on it, the tracking is messed up...... Happens to trackpads too.
  17. macrumors newbie

    Aug 29, 2013
    I had the same problem, with a new iMac: I was getting a lot of random scrolling, in the middle of editing work, and it was very annoying.

    Contacted Apple and they told me to do an SMC (?) reset, which changed nothing, of course.

    I then realized that the problem was from an over-sensitive Magic Mouse. Many users seem to complain about this over-sensitivity, especially for newer computers.

    So, a while ago, I took the following advice the website at the end of this post.

    Control the touch-sensitive area of this mouse with the free app MagicPrefs (not clear why Apple does not provide something this useful):

    download it from and install

    then go to its Preferences

    in the new window that opens, click on Configure Scrolling, at the bottom right

    you will then see the sensitive area of your mouse

    click and drag to reduce that area

    I had found that especially touching the edges of the mouse start the random scrolling

    so, I made the touch-sensitive area for scrolling very small, and in the top-middle of the mouse, about where the scroll-wheel would be on a normal ;) mouse.

    Hope this saves you all a lot of frustration.

    P.S. I learned about MagicPrefs from one of these frustrated people
  18. macrumors newbie

    Oct 5, 2013
    I had the same trouble. Then I noticed when the battery of the mouse was about 30% the irratic scrolling started. Disabling bluetooth and replacing batteries of the wireless mouse stopped the magic scrolling

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