Model A1181: 1.83, 2, 2.1, 2.13, 2.16, 2.2, or 2.4 GHz Core 2 Duo processor

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My mouse clicks when I rest my wrist next to the trackpad.

Sometimes, I'll be typing, and I'll have my right hand resting on the space next to the trackpad. If I put too much weight on it (normal typing pressure), the mouse clicks. What a pain! How can I fix this?

Update

It's not that I'm tapping the pad a little bit, it's that the weight of my hand physically triggers a mouse click.

Answered! View the answer I have this problem too

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This always drove me nuts about laptops with trackpads too. I never had a good solution.

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Oh ok, that has never happened to me on my Macbook. That's not supposed to happen under slight pressure from your hand laying on the topcase. I would remove the topcase and have a look at the ribbon cable and check clean up around the creases surrounding the button itself.

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I have the same problem. But, why the battery? How come? For the sake of simple curiosity, someone could explain? Thanks.

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Some of the other answers have more detailed descriptions, but the idea is that the battery pack swells as it gets old, and since it sits under the trackpad, it pushes up, causing the trackpad to click when you don't mean to.

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The battery might be starting to swell. Make sure you're using the power adapter, remove the battery and see if the symptoms persist. You should also be able to see a slight swelling, causing the top or bottom of the battery to bow.

If that's what's happening, the highest quality replacements are made by NuPower and FastMac. They're cheaper than the Apple batteries and last longer. For the MacBook models, there's not much practical difference between the batteries produced by the two companies.

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Woo hoo!!! Thanks so much!

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I also shared that pain...I resolved it by just completely disabling the track pad and mouse whenever I have my Bluetooth Mouse on. Theres an option that automatically disables track pad and button whenever theres another mouse connected. If that isnt an option, I would lower the sensitivity of your track-pad and un-check the "tap gestures" feature from the track pad options, this would avoid the accidental clicking. This way, clicking is only activated by physically hitting the button and not the track pad.

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Same problem. It would click even when I typed, without even touching the whole lower portion of the computer!

Turned out the swollen battery was the problem. I took it out, and put it back in, but didn't fully press it in this time, and it works perfectly! I'll probably replace the battery soon though.

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Most laptops use Lithium-Ion type battery packs. While hugely efficient, they do have the issue that if charged incorrectly, or allowed to discharge too completely, they will swell (or occasionally worse, explode). It also can simply happen due to the battery becoming old.

The swelling is in fact due to the release of gasses by the electrolytes used in the cells. As they are sealed, the gas has nowhere to go, and therefore the swelling.

This line of MacBooks happens to have the unfortunate design flaw that the battery resides below the switch used by the trackpad - so if/when the battery swells, the button is clicked from below, and sometimes even left permanently clicked (which is why you would see your mouse completely stop working for clicking).

Luckily the solution is fairly simple, and I you're willing to go with a non-Apple product, inexpensive. I replaced my pack with one from eBay (a third-party China made pack) for under $30, and it has worked perfectly ever since! Plus, you get the added bonus of getting your battery life back, so it really is a no-brainer!

Good luck,

Fateh

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It happened the same to me. After long searching, trying and whatever else, it proved to be the battery wich causes this problem. Strange, but true. I would say: change the battery.

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My family has 2 Core 2 Duo MacBooks and while they were under warranty (3 years) I had 3 or 4 top cases replaced because of this problem.

I thought that it was probably happening because the laptops had been packed too tightly in my bag for too long and that that was squashing the trackpad etc.

Anyway each time the top case was replaced the problem went away for quite a while. They are still going well now years later and I've never replaced the batteries on either laptop.

So maybe the top case on that model is prone to damage as well as the possibility of battery swelling causing the problem.

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The way the battery is inserted may be a factor here, not just whether the battery is good or bad.

I ran into this problem yesterday after removing the battery (I was cleaning my screen with water and I think the instructions are to remove the battery). I removed and replaced the battery again and the problem isn't gone 100%, but it's much much better. So it's possible the battery is not bulging, it was just inserted in such a way that it pressed more against the inside of the machine. For me, it was very easy to turn the latch with a coin when the battery was in correctly.

This is with a late 2008 Macbook, which is on the tail end of its lifespan anyway.

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