Has anyone else experienced issues with touchpads since updating to Sierra? Particularly built in touchpads on Macbook Pro's? My touchpad was working just fine until the update. Since then it has gotten more and more troublesome. Occasionally it will work fine after a reboot, but it will soon begin to dance around and be unresponsive. Beyond the basic PRAM, reboots, malware scans, and disk permission repairs I am out of ideas. I'm hoping it's a software thing.