I recently upgraded OS to 10.11.6 on my 2009 Mac Pro and have had problems with my Apple magic trackpad. It seems to intermittently drop and recover connection and also appears to lag in response to input. Often it will respond in a jerky way that causes me to overshoot or undershoot my target and it's hard to select things. Sometimes I lose the cursor. All of these symptoms are probably related. Are there known problems with 10.11.6 and Apple trackpad? I am using a usb bluetooth device as...
Apple trackpad problems with El Capitan
Apple trackpad problems with El Capitan