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Mouse and trackpad just not working - can't use machine

386 Views 5 Replies Latest reply: Nov 16, 2012 4:55 PM by BDAqua RSS
TWH3 Calculating status...
Currently Being Moderated
Nov 16, 2012 11:33 AM

Hi there,


I have a late 2009 iMac running an up to date version of Mountain Lion and all has been well until today.


My iMac behaving very oddly with my trackpad. I have tried switching it our for a wired mouse and I get the same results. This is what I am experiencing:


The iMac behaves as though I have either:

  • clicked and held my finger down - on my desktop when  I move the cursor around the iMac thinks I'm trying to select an area
  • right clicked - when I try and click on an icon in the dock, the right click options appear


Additionally I am experiencing the following

  • iMac doesn't respond to me clicking on an icon
  • I can't select an option, ie if I do select an option such as 'Continue' (more of that later*) I  can't get the iMac to respond to me clicking it


Before switching over to my mouse I replaced the batteries in my BT keyboard and the trackpad. I've also tried attaching a USB keyboard (albeit a PC one)


I have tried the following:

  • resetting the V/P RAM
  • booting in Safe Mode
  • Shutting down, unplugging everything (inc power cord) and left for 10 mins before rebooting
  • Booting in recovery mode and reinstalling M Lion - I can't even do this

* When presented with the recovery options I can scroll through the 4 options with the up down arrow keys, I can select 'Continue' with the mouse or trackpad (it goes a solid blue colour) but I move forward - either by clicking it or hitting Enter on the keyboard.


I'm now totally stuck as when I reboot (there's been a fair few forced ones) I can't even select my user profile (or any of the Resart/Shut Down options)


Time to make a Genius Bar apppointment, or is there something else I can do?




EDIT: I did manage to select my wife's user profile and eventually got into the system, and very strangley if I access the iMac via LogMeIn on my work PC it responds excatly as it should. I can click, select as normal. Even when I'm doing this remotely my trackpad and mouse continue to behave incorrectly (as described above


Message was edited by: TWH3

  • BDAqua Level 10 Level 10 (114,800 points)
    Currently Being Moderated
    Nov 16, 2012 12:44 PM (in response to TWH3)

    When you tried the USB PC KB, did you have wireless one off or batteries removed, sounds like it thinks a Modifier key is always pressed.

  • BDAqua Level 10 Level 10 (114,800 points)
    Currently Being Moderated
    Nov 16, 2012 2:53 PM (in response to TWH3)

    OK, good luck!

  • BDAqua Level 10 Level 10 (114,800 points)
    Currently Being Moderated
    Nov 16, 2012 4:55 PM (in response to TWH3)

    Good work, thanks for the report!


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