Mouse won't left click or right click

Mighty Mouse (wired) has stopped recognising left click and right click. All clicks on the mouse are interpreted as a click on the scroll wheel ("centre click") which brings up Dashboard and prevents normal use of the mouse. Is there a way to fix this, or is the mouse dead?
I have unplugged the mouse a few times, but no change. The side buttons still work and the scroll wheel still operates normally, just no left or right click. My spare mouse is an older style (from a G4) so can't access the relevant preferences to re-map how the Might Mouse should operate (eg, to change centre click to operate the normal left click function). Any suggestions? It's still under warranty and has already been replaced once for a different problem.

You could try cleaning it:
Use a clean lint-free cloth lightly moistened with water. Wipe the ball and the surrounding area, making sure to rotate the ball itself to ensure complete coverage. If the scrolling feels rough or if the scroll ball isn't scrolling up, down, or side-to-side, hold the mouse upside-down and roll the ball vigorously while cleaning it to help dislodge any particles that may have collected on the internal hardware.
Let us know if this helps,

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You have 90 days of free AppleCare telephone support, I would strongly recommend that you begin using it.

Macbook won't left click, but WILL right click.

A curious problem.
Over the last few days my MacBook Pro 13 Inch, from 2010 running OSX 10.6.8, has stopped clicking a few times.
A worn out track pad, you would think. But my magic mouse doesn't click either. And the real kicker is I can still RIGHT click, both with two fingers on the trackpad AND with my magic mouse. I just can't click normally on anything. It's not frozen, as I can still right click, and even navigate between programs using four-finger swipe for expose (then swiping back with the mouse over the program I want), and use keyboard commands to save and quite programs.
It's as though it's just ignoring of my clicking, both from the trackpad AND the magic mouse.
It does it out of the blue, and I have had to shut down and restart a few times. But scarily, the last time it did it I couldn't click even after restarting. I then unlugged the power cord and restarted in safe mode and it's working - for now.
Seems unlikely, but the only thing that it's coincided with are a pair of new Seagate Expansion 1TB hard drives I recently bought. It seems every time the click has frozen, one of these has been plugged in. But I've used this type of hard drive and many others constantly over the years. Correlation or causation?
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I have been reseaching this problem for the past couple hours because I am dealing with the exact same thing.
I have found two solutions and possible causes.
First, try turning off bluetooth completely. Sometimes if you have a paired mouse or paired device it causes the left click to stop working.
Once you try that and its most likely not the problem, well then I think its your battery. When the battery gets old and starts to go, it will expand. The battery expands and puts pressure on the back of the track pad causing it not to work.
I am buying a new battery so I will let you know the result.
My sources and info came from the following forum, well that one and many others. I know this is a late responce but i hope it helps others.
https://discussions.apple.com/message/12427481#12427481

Sometimes the mouse doesn't left click in Hyper-V

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Firefox won't left-click open links in new window

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Many site issues can be caused by corrupt cookies or cache. 
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'''''Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"'''''
 and 
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Under '''History''', select Firefox will '''Use Custom Settings'''. 
There is a button on the right side called '''Show Cookies'''. 
If there is still a problem,
'''''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode]'''''
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'''''Firefox Options > Advanced > General'''''. 
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My Magic Mouse won't double click

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Hello:
No apology necessary
PRAM=parameter random access memory.
You reset it like this: http://support.apple.com/kb/PH11243
A reset sometimes helps and it cannot hurt anything.
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Welcome to the Discussions Headdragon,
Are you using an Apple mouse?
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My mouse won't click unless i min. then maximise

When I go on firefox my mouse won't left click or right click on the page open but will work on the upper or lower task bar. But when i minimize it or max it works untill I want to click on the task bars, so then I have to min, max it again then it works till I change again. This is driving me nutts and I've changed my mouse but no different. I know this must be something simple. IT used to do it only in my profile but now it in all of ours on this computer.
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Strangely enough, plugging in a mouse that has a scroll wheel and clicking the scroll wheel/middle button seems to have, at least for now, fixed the problem!

Mouse won't click!

This is driving me crazy. I have a wireless bluetooth mouse made by Rocketfish. It won't left-click, but the right-click works for some things. To me it seems like the right-click has taken some of the functions that the left-click used to do. I can select menu items, but I can not click any buttons. So here is the situation.
From the login screen I can r/c and select my profile.
Type in my password and hit enter. That gets me into the desktop.
Immediately I get a message telling me about my computer haveing been restarted after an unexpected shutdown and a iCal notification about an appointment last week. I can't do anything with either of these windows. They don't seem to function like normal windows, so close all doesn't work. The only way to close them is to click the button in the window which I can't do.
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I've changed the mouse with a USB mouse, and even used the mouse off my PC. All do the same.
I tried booting in safe mose, but that didn't fix the problem.
I read somewhere about booting from the disk, but I don't know how to do that. Also someone suggested restarting the disk utilities or something. When I tried that, I got to the point where I needed to click the button and could go no farther.
I have a sneaking suspicion my 11 year old was playing with something she shouldn't have like the universal access stuff, but she won't admit it and I don't know how to fix it.
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Hello again:
While you are asking people +"did you read"+ - did you read my post about an archive and install?
Are all of the USB devices you tried non-Apple?
Since your keyboard seems to work, try resetting the PRAM and SMU (I cannot link to the specific knowledge base article re: SMU as your profile gives no indiction what Mac model you have).
http://support.apple.com/kb/HT1379
http://support.apple.com/kb/HT1767
http://support.apple.com/kb/HT1543
By the by, since none of us have seen a similar problem, all of us are trying to troubleshoot YOUR problem from long range. It is unhelpful to blame Apple for something that is localized to your system. It is also way out of line to tell an experienced (volunteer) poster to +"Keep their trap shut."+ Your attitude will have you asking questions of yourself since no one here will bother to help you if you display that kind of hostile behavior.
Barry
Message was edited by: Barry Hemphill

Trackpad won't move curser mouse does. Left and right click working fine

Hello everyone,
I have a problem. Out of nowhere my trackpad won't move the curser anymore. Connecting a USB mouse does. Left and right click are still working fine. Any ideas of how to fix it?
Thanks
Dave

Hey there DaveDaMac,
It sounds like your built in track pad is not responding at all, but your USB mouse works without issue. I recommend the troubleshooting in this article for you named:
Intel-based Mac notebooks: Troubleshooting unresponsive trackpad issues
http://support.apple.com/kb/TS1248
Try disconnecting the MagSafe connector from the computer and check the trackpad function. If the trackpad becomes responsive again, improper grounding may be the issue.
If a two-prong AC plug is being used with the power adapter, try using the three-prong power cable that shipped with your computer and plug it into a grounded outlet.
If the issue persists, make sure the third prong is present and do not use an adapter to enable the three-prong adapter to be used in a two-prong outlet. Note that the ground in the three-prong outlet may not be connected. This is common in older homes or buildings with replaced outlets. In these situations, the three-prong power cable will not improve trackpad responsiveness.
If a grounded outlet is not available, rest your palm on the palm rest when using the trackpad. This should enable the trackpad to function properly.
Thank you for using Apple Support Communities.
All the very best,
Sterling

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Mouse won't right click and I want to swap the right and left button functions. How do I do this?
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Hopefully it's a cache issue not your Magic Mouse.
Quit Safari.
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Mouse won't left click or right click

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