Previous 1 2 3 4 Next 54 Replies Latest reply: Jan 10, 2012 5:57 AM by rahaas
JohnRobbFL Level 1 (0 points)

I have an odd issue. I have a MacBook Pro (2.5GHz Core 2 Duo / 4GB Ram) with a 2nd, 24" monitor. I use the 24" as my "main" screen and the MacBook display as a secondary. Since I installed Lion my cursor is randomly jumping to the MacBook's display. I haven't found any consistency in this, but it's very irrirating.


Anyone else?

MacBook Pro, Mac OS X (10.7)
  • Adrian Nier Level 1 (0 points)

    The pointer jumps to the lower right corner of the built-in display, but sometimes also to the upper left corner of the main screen, a 27" Cinema Display LED. This is a MacBook Pro 15-inch (Late 2008) with a 2.53 GHz Intel Core 2 Duo processor and 8 GB of RAM running Mac OS X Lion 10.7 (11A511).

  • Eric Busboom Level 1 (0 points)

    Same issue; my mouse pointer is jumping from the primary monitor to the second monitor on Lion on a 3.06G iMac. I'm using a Magic Mouse but also have a track pad connected.  ( The problem happens with using the Magic Mouse while the track page is connected an unused. )


    It seems to jump in the direction I've moved the mouse, often more than 1/2 a screen width, often directly to a corner. Since I usually start moving the pointer in a circular motion to the right, the pointer often jumps from the main monitor to the upper-right of the secondary monitor. 


    The problem does not seem to happen with a wired mouse.

  • Greg Mote Level 1 (0 points)

    Good to know I'm not the only one. I hope 10.7.1 fixes this rather silly little bug. I will have to dig out a wired mouse to see if that fixes it. I have a MacBook Pro 15-inch (Late 2008) 2.8 GHz Intel Core 2 Duo Pro with a 27" Cinema Display LED.

  • OKneib Level 1 (0 points)

    Same problem. I only have Magic Mouse attached, no trackpad.


    3.06Ghz Inter Core 2 Duo iMac with 8GB mem. Second screen is a DVI Philips 21,5" led display.


    Hope this problem will be fixed, very annoying!

  • Andicus Level 1 (105 points)

    Same problem here. I only have Magic Mouse attached


    MacBook Air mit 23" Cinema Screen- pointer jumps occationally from Cinema screen (primary) to secondary screen (MBA).

  • bernardo from madrid Level 1 (0 points)

    same problem but wich only one monitor. The pointer jump in my imac 27.

  • proximus Level 1 (55 points)

    I found that the workaround is to disable all Hot Corners. 


    Note: I have single monitor, but the same cursor jump is experienced.

  • OKneib Level 1 (0 points)

    Thanks, Proximus,


    For me Thatcher works too. I don't like the hot corners anyway so don't mind disabling it.



  • Bupsy Level 1 (0 points)

    Just tried this earlier this morning and I am still experiencing this issue with my MacBook Air hooked up to a 24" Apple Display (MBA is set to secondary display).

  • mattisme Level 1 (0 points)

    The hot corner fix did not work for me. It didn't seem to make any bit of difference at all. However, I noticed that the quicker you start out using the mouse, the more likely it is to "jump" accorss the screen. Turning down the tracking speed did seem to help a little, but it still seems to come down to how fast you move the mouse at first.


    Anyone had any similar experiences?

  • Bupsy Level 1 (0 points)

    Yup same exact symptoms. Very frustrating.


    On another note, has anyone else noticed that the tracking speed of the mouse slows down when on the secondary display?

  • JohnRobbFL Level 1 (0 points)

    I haven't noticed it slowing down on the secondary display, but since mine is a larger screen it does take longer to go from one side to the other.

  • JohnRobbFL Level 1 (0 points)

    Shutting off hot-corners did not fix my problem. I've noticed that it seems to happen more often when I'm using Photoshop, Illustrator or Dreamweaver (CS5). It does happen with other programs running as well, but more consistently with these.

  • David Burwell Level 1 (10 points)

    Same problem here...  It's Apple's way of keeping us on our toe's and awake so we stay focused on our tasks!  Okay, maybe not...


    Hope it doesn't put a stop sign in my summertime...

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