Desktops
Q: 'Jumping' TrackPad
My trackpad has started to behave erratically and is difficult to control when moving across the screen, almost like an old fashioned mouse with fluff on the ball!
I haven't added any new bluetooth devices to cause interference.
Any solutions???
iMac
Posted on Sep 11, 2016 2:52 PM
by seventy one,Apple recommended
Peripherals
It isn't just bluetooth devices that cause interference. Even heavy metal jewellery has been known to do it. This is Apple's guidance should you not have seen it,
A particular problem can be party walls in apartments. You don't always know what your neighbours are doing and walls do allow signals to pass through.
Potential sources of Wi-Fi and Bluetooth interference - Apple Support
Posted on Sep 11, 2016 10:49 PM