Magic Mouse Jumps After Update to 10.6.8 - Help!

Ok so I have updated my 2010 iMac to v10.6.8 and now my Magic Mouse randomly spazzes across the screen or is very slow to move. I have installed the supplemental update in the hopes of fixing the problem, also reset the PRAM and SMC, all to no avail. I've seen quite a few threads about this issue for Lion users, but have yet to come across one specifically for Snow Leopard users.
If there is one and I'm just being blind, please feel free to point me in the right direction.
If there isn't and there's something else someone with better knowledge of this kind of thing than I have can suggest, by all means let me know.
Thanks in advance.

Here comes the/my solution:
Remove Sophos Antivirus
Thanks to boojum's remarks in https://discussions.apple.com/message/15480849#15480849 !
Don't forget to use Sophos' deinstall package: /Macintosh HD/Library/Sophos Anti-Virus/Remove Sophos Anti-Virus.pkg
Nevertheless, some settings have been re-initialized (no complete list!):
- Dock
- Language has been reset to English only
- Expose & Spaces
(- probably all personal settings?)

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Magic Mouse issues after updating to iTunes 11

Hi,
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Hi
I bought 3 MacPro. One configure 2.8 and 2 MacPro 2x2.4.
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If you searched you should have found you are not alone with that MM/Mac Pro problem. Probably the biggest thread in these forums (22 pages) is this one:
Poor Bluetooth reception and jerky mouse
Summary, add your own external antenna or get a USB Bluetooth dongle.
How far are your mice from the mac pro's? Probably more than 3 or 4 feet from the back of the mac pro is about the limit.
Are there any wireless devices nearby (e.g., routers). Sometimes they cause interference.
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For those a little less into do it yourself I just found Mouse Wizard:
http://www.samuco.net/web/node/23
I will say that when I downloaded the demo the center button didn't work, but a very quick & courteous reply from their tech support suggested:
In terminal, can you try entering this command: "rm ~/Library/Preferences/.MagicalWizard.plist". Then, relaunch MouseWizard.
I did this & now I have center button nirvana! (Mouse Wizard also supports a version of the squeeze button (they call it fourth button) and squeeze/bloat gestures.)
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Anyone else have a problem with Magic mouse scroll after Maverick update?

Now I have upgraded to Maverick (among other minor things) my Magic Mouse scroll often doesnt work unless I close the application it stopped working in and open it again.
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This has happened to me, in fact, why I'm even searching in here...I need help too to fix it! It's so annoying!

Has anyone figured out a way to scroll & swipe with magic mouse again after upgrading to Maverick? Thanks!

I finally upgraded to Maverick and now my magic mouse doesn't scroll or swipe on any application and to make things worse, my keyboard scrolling ability after pressing down on the arrows is a bit delayed. Does anyone know how to solve this? My magic mouse and keyboard are a month old, so, I know it's not the devices, but something with the update.
Things I've done from reading other forums:
1. Went to System Preferences/Mouse Settings [but it only gives me two settings: Tracking & Double-Click Speed]
2. I've reset my PRAM a few timesnow.
3. Tried restarting my computer a few times too, but nothing.
4. I've tried searching for these files in my Library to DELETE, but they don't exist, so that method is not an option:
com.apple.driver.AppleBluetoothMultitouch.mouse.plist
com.apple.driver.AppleBluetoothMultitouch.trackpad.list
com.apple.driver.AppleHIDMouse.plist
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or my actual question is -- is there anything inherantly wrong with this approach.. i mean, if i can get it to make it through consistently, is there a problem with it repeating / updating the variable so many times in a row? is it a drain on system resources or can it break anything etc.?
Although I'm far from being an expert in programming, I would answer NO. Imho, you've just got a brillant idea! (As for “repeating / updating the variable so many times in a row”… you could add a short delay (like “delay 1”) inside the repeat block, but I don't think it's a must.)

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Hello,
I am having problems with my Magic Mouse (cursor, pointer) jumping around on my screen when i attempt to use it. I checked preferences and the connection is fine. Has anyone else experienced this? And if so how do we remedy this annoying problem?

I was about to post this same question and then I found this thread.
Magic Trackpad was working great, I love using it.
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Shame as I had thought Apple had finally produced a "mouse" that was worth of their brand and reputation.
Message was edited by: Gilbertfield

Magic mouse sluggish after rebooting mac

Hi,
I have a strange problem with my magic mouse.
I have an early 2013 Macbook pro retina. After I upgraded to Yosemite, for a while I had a lot of problems with the magic mouse, sluggish response, disconnecting all the time and so on.
I reset the SMC and that solved the problem, occasionally it would come back but resetting the SMC always solved it.
But a few times, I have problems after rebooting the mac. The mouse is working perfectly but when the computer reboots starts behaving badly.
Yesterday I had that problem, I rebooted my mac and after all the mouse was terrible. I tried resetting the SMC but it didn't work. I remove the device and it had problems finding it, it eventually did but still it wasn't working well.
After a while, I shut down the system, reset the SMC once again, waited for about a minute, turned it back on and as the mouse was still a bit erratic, then I rebooted, and from then on it worked well.
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HI,
Try Resetting the PRAM
Also, install the v10.6.2 Combo Update
Repair disk permissions.
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Carolyn

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*Magic Mouse is on Drugs*
OK so first, let me say that generally speaking i love my mac. There was a time in the 90's when i was a big Apple fan, but after a few dumb@ss business decisions by Apple, i decided to convert to Windoze (and my entire company at that) So here we are a decade later; and I'm back on a mac again.
Recently my MagicMouse started spazzing out. Randomly jumping to new points on the screen. At first it was mildly annoying. Now it's infuriating. I used Camtasia to record this behavior:
http://www.youtube.com/watch?v=fX8ApUH6QOw
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Second, after assuring Apple this really was a problem, i got the ultimate insult. "If you would like to lodge a technical support ticket, we will need your credit card. This call will cost you $150.00."
You see, I bought this thing four months ago. Apparently you only get a 90 day free call period. After that you're warranty is actually a cost per call scenario.....
So -- While i love my mac, i'm of the distinct impression i've made the wrong choice. The only good news is I've now decided not to convert the rest of our 20 workstations in my business back to Mac....
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Oh by the way --- plugged in a USB laser mouse, problem does not occur with that device -- tried on all sorts of surfaces; mouse pads, no mouse pads, black paper, white paper, patterned, non patterned, special optical mouse pad for laser mice.... SAME results no matter what the surface is, and YES, i've also cleaned the optics with a lens cloth..... (And the battery is currently at 88%)

Hello g:
Welcome to Apple discussions.
I suspect a faulty mouse. However, try two things first. Trash a preference file (com.apple.bluetooth.plist) and restart. Reset the PRAM:
http://support.apple.com/kb/HT1379
Second, after assuring Apple this really was a problem, i got the ultimate insult. "If you would like to lodge a technical support ticket, we will need your credit card. This call will cost you $150.00."
You see, I bought this thing four months ago. Apparently you only get a 90 day free call period. After that you're warranty is actually a cost per call scenario…..
There is no Apple charge for a warranty issue and the mouse has a one year warranty. Call Applecare back (or take it to a store if they have one close to you). Unless I am badly mistaken, Apple will replace the mouse and pay for shipping both ways (I had one fail a couple of years ago myself). Do identify the call as a warranty issue.
Barry

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I think you have the same problem as we have:
https://discussions.apple.com/message/19269136#19269136

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What IS a huge deal is when the mouse decides to jump the cursor to a random point on either of my two screens. Extremely annoying especially if the second screen isn't even turned on and it jumps over there.
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My iMac is the 2010 27" Core i5 version upgraded with 12gb of ram, in case any of that is relevant at all.

I don't believe this. I've just spotted this post by user Ratzelda. He says that it's an issue with having dual (or multiple) monitors connected but powered down. I hadn't noticed any change in the mouse's behaviour when using the second monitor, but out of curiosity I just switched it on and sure enough the mouse is behaving normally now!
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Hello together,
since today my MacOS X (MacBook Pro, 10.6.6, early 2011) seems to forget my Magic Mouse movement settings every time I restart OSX and after waking up from sleep mode. The settings are always put to minimum automatically.
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Manuel,
Try going into System Prefs->Accounts. Unlock it. Look in "Login Items" and delete MagicPrefs application. Restart your computer. It worked for me...

Magic Mouse Jumps After Update to 10.6.8 - Help!

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