4 Replies Latest reply: Apr 17, 2011 12:06 PM by SundownerBrad
andiecarp Level 1 Level 1 (0 points)

My mouse cursor keeps moving by itself; it darts quickly across the page, usually on a diagonal. Has this happened to anyone before? I don't download much, expect for torrents for my music...and I stream videos. Other than that I just check email, facebook, etc. I don't have shared internet connections or anything. Could it be the mouse, a hardware problem versus a software problem or virus??

Thanks for the help!

iMac, Mac OS X (10.5.8)
  • 1. Re: Mouse cursor moving on its own
    den.thed Level 7 Level 7 (23,910 points)

    Hi Andie


    Clean the optical sensor, check for a dust bunny, hair or other crud.....


    Try a plain matte finish mouse pad.....



  • 2. Re: Mouse cursor moving on its own
    andiecarp Level 1 Level 1 (0 points)

    Thanks Dennis. I should have mentioned its a fairly new mouse, however this issue didn't start right after I got the new mouse. I tried the cleaning suggestion, and I do have a pretty plain mousepad. Still happening...

  • 3. Re: Mouse cursor moving on its own
    albertohio Level 1 Level 1 (0 points)

    Could you possibly have your keyboard mouse movements turned on in your Universal Access, under the Mouse tab, in System Preferences, and maybe have something pressing down one of the diagonal cursor movement keys on your keyboard?


    If so, the keys j, l (L), 7, 9 keys are the diagonal cursor movement keys.


    That's one possibility... Just throwin' that out there..

  • 4. Re: Mouse cursor moving on its own
    SundownerBrad Level 1 Level 1 (5 points)

    You need an old priest and a young priest, a rosary, and some holy water. Naw... just kidding. Around the mouse there is a rubber seal that might not allow the mouse to sit flat if there's a build up of gunk. Lightly clean the rubber trim, and check your mouse pad for signs of wear. The above posters are right on the money too.