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Level 1

10 points

Anyone else's Mouse double clicking instead of single after upgrading to Mountain Lion?

Hey guys,

I upgraded to Mountain Lion on the first day and immediately i noticed an issue with my mouse.

When I single click my mouse it frequently double clicks and is ****ing frustrating!! I use my mouse for work as a graphic designer and im a very fast worker - with this issue my productivity has nearly dropped a third.

I use a Logitech Performance MX mouse, but have also tried it on my standard (new / was unopened) Apple mouse that came with my iMac.

I have also tried altering the double click speed in the system preferences but the issue keeps repeating.

if ANYONE can help me i would very grateful as if this continues i could potentially lose my job.

iMac (21.5-inch Mid 2010), OS X Mountain Lion

Posted on Jul 29, 2012 4:24 PM

Best reply

TheSmokeMonster

Level 4

3,246 points

Posted on Jul 29, 2012 4:26 PM

You need to reset you PRAM

Resetting PRAM and NVRAM

Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.

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33 replies

greysonr

Level 1

0 points

Jun 3, 2013 11:45 AM in response to greysonr

It turns out in my case that my mouse had gone bad, oddly, exactly when I upgraded to Mountain Lion—just funny coincidence.

Tom_V

Level 1

9 points

Jun 3, 2013 1:27 PM in response to Tom_V

So after trying everything, except smashing the mouse... I found an old mouse and swapped. It seems to work fine. I think the problem was the mouse.

And, by the way, the old mouse was labled "mouse", and the old replacement is labled "pro mouse"... the only difference is the Pro Mouse has black guts. And works.

kreizboi

Level 1

4 points

Jul 11, 2013 11:22 AM in response to captfred

This helped me. I thought setting the Double-click to low was to slow down the double-click speed. thx

Jul 25, 2013 7:38 AM in response to TheSmokeMonster

NVRAM/PRAM in Mountain Lion DOESN'T hold mouse settings any longer...

And I have the same issue of single-clicks that THE SYSTEM thinks are double-clicks with any USB mouse I've tried.

It seems that it started after the last Combo Update or Security Update... I did them together...

rjneeley

Level 1

0 points

Jul 26, 2013 7:01 AM in response to Sergio Tezza

Same issue here as Sergio Tezza. Dialog boxes in applications will pop on screen and instantly pop off, files will save as if I've clicked "OK", a file will open with a single click rather than a double click. Just did the Security Update on Monday and all these issues started happening. Anyone else? Any fix???

Jul 27, 2013 11:53 AM in response to rjneeley

I found this helpful and it solved my problem:

http://www.sysprobs.com/fix-usb-mouse-stopped-working-snow-leopard-1066-update-v mware

rjneeley

Level 1

0 points

Aug 2, 2013 7:49 AM in response to Sergio Tezza

That doesn't help since I'm using a magic mouse, or mighty mouse or whatever it's called. I've tried all the settings in the mouse preference panel, I've tried reconnecting to the mouse. We have 2 computers here doing the same thing with the same mice -- one is only about 2 months old so I don't think it can be a worn out mouse. Any other ideas??? We are having SO many problems!!!

Aug 2, 2013 11:32 AM in response to rjneeley

If you use Magic Mouse, try this: https://www.macupdate.com/app/mac/33095/magicprefs

It speeds it up at least double and sets it a bit more reliably...

kurbads

Level 1

4 points

Jul 14, 2015 12:57 AM in response to captfred

I am using OSX86 and Lion as it is the latest version I can run on my old Asus P5K3 Deluxe motherboard with Palit Gtx 460 video card. So the NVRAM reset is not my option.

I have a cheapest wireless mouse you can possibly imagine. It started to develop double click issues over time. I changed the battery with no improvement.

I carefully read trough this tread and tried Universal Access mouse option.

First I maxed it out to Fast and I could not even do a double click. Then I moved slider back to Normal and the problem seems to be gone.

I believe it has something to do with the click signal the mouse emits. It possibly is broadcasted too long and computer reads it twice.

Anyway, it is possible that the problem deteriorates or improves on its own.

In my case it has nothing to do with drivers. I regularly update my system HDD backup image and reverting does not solve the problem.

If you have a Bootcamp, try and repeat the problem under Windows to isolate the problem. Windows has double click speed setting too.

Nov 22, 2015 1:41 PM in response to captfred

Thanks. That was it. I moved the slider to slow, thinking that fast was the opposite of my problem.

Apr 3, 2016 8:29 AM in response to Switchwa

Encountered this today. Absolutely maddening! I have found that doing System Preferences >> Trackpad >> Point & Click, disable Force Click and haptic feedback seems to have solved the problem. Hope it solves yours too.

- brian