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Q: Please i have issues with my trackpad it jumps about..How can you be of help?
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Jul 23, 2015 12:08 AMby seventy one,Apple provide these notes to deal with jerky and jumpy mice. Review them and see how your situation relates. Pay particular attention to the section dealing with interference.
Installing Yosemite has been reported many times as the point at which mice or trackpads become unstable. I have read nothing from Apple to suggest it is a known fault point. But things change around the home and even the individual. It is always worth reading these two Apple documents carefully as a starting point.
https://support.apple.com/en-us/HT203171
