She returned home today, for the weekend, and I tried to change the battery, after I had fitted the new track pad, to find out that the one I have ordered does not fit. I have changed the trackpad and I couldn't get to look at the battery in the machine because the lass who owns it is at university in Toulouse, about 70 miles away. OK, now I have had the trackpad, battery and the young lady who owns the MBP all together, along with the MBP. Nearly forgot!! I also cleaned around the very edge of the pad with a cotton bud damp with Isopropyl Alcohol, just damp. So, I am now wondering if it could be the tracpad itself? I thought that they would be an arm and a leg to buy, but they seem a reasonable price? I then booted in Safe mode and nearly went boss eyed trying to keep up with it with the mouse disconnected. So was the trackpad sometimes, but not all the time when the mouse was switched off. I tried the 'ignore trackpad when mouse connected' in Accessibility and the mouse was perfectly stable with the mouse on. The battery also looks OK and I can't see any swelling at all. So there was definitley no pressure from the battery. The cursor still bounced, but I noticed that it only bounced vertically now! If you move it across the screen it just goes up and down in the new place. So I have had another look at the battery and I even removed it, still connected and whilst supporting the MBP powered it up with the battery underneath but not touching the unit. She starts back next week after 3 months off! and told me that the jumping cursor hasn't gone away. maybe it will help someone with this mystery.Well tyical university student. Hers is getting better everyday, and we spray air around the edges of the trackpad regularly to help evaporate the offending liquid. My thoughts, unscientific for sure, is that moisture is somewhere under, or at the edges of the trackpad and is affecting control.
We live near the beach and moisture is pretty prevelant overnight outside. Also, we accidently left our computers outside one night on our patio. She did the same to hers and has been having problems too with her trackpad. This being said, my wife did recently "clean" my computer and admitted she used some windex and it might have been a bit too much around the trackpad (ugh, I know.Windex, she has been educated since). Tilt my computer, even a little bit, and it starts up again after a while. So I have been consciously making sure my computer is level and cushioned from vibration with a pillow (allowing air flow for fan). Mac is never level or not vibrating slightly from the ship when it is moving. So I got thinking, on a table, no problem (on land).
I usually sit in my bed and work with the my laptop (macbook pro circa late 2012, Maverick 10.9). Wifi, bluetooth, on or off didn't matter as others have mentioned. Get back to the ship and it starts again. Then I sat at a table on land while we were in port. Been having trouble with the jumping cursor thing like everyone else explained. I work as an entertainer on cruise ships. Make a "Genius" appointment at an Apple Store to have the machine and/or external trackpad tested. If the cursor movements stop at once, you should suspect an intrusion.ġ0.
If none of the above applies, or if you have another reason to think that your computer is being remotely controlled, remove it from the network by turning off Wi-Fi (or your Wi-Fi access point), disconnecting from a Bluetooth network link, and unplugging the Ethernet cable or USB modem, whichever is applicable. There's also a report of erratic cursor movements caused by an external display that was connected but not turned on.ĩ. If you're using such an adapter, disconnect it and test.Ĩ. There's a report that a (possibly defective) Thunderbolt Ethernet adapter can cause the built-in trackpad of a MacBook to behave erratically. The battery must be replaced without delay.ħ. If you have trouble clicking the trackpad, this is likely the reason. A swollen battery in a MacBook Pro or Air can impinge on the trackpad from below and cause erratic behavior. If you're using a Bluetooth trackpad, investigate potential sources of interference, including USB 3 devices.Ħ. Reset the System Management Controller.ĥ. If you booted in safe mode and there was no change, go on to the next step.Ĥ. If you can't boot in safe mode, do the same. If you don't have the problem in safe mode, but it comes back when you reboot as usual, stop here and post your results.
Boot in safe mode and test, preferably without launching any third-party applications. Disconnect any USB input devices that you aren't using.ģ. Open the Bluetooth preference pane in System Preferences and check for unknown or forgotten input devices. Follow the instructions in this support article.Ģ. Take each of the following steps until it's resolved.ġ. There are several possible causes for this issue.