Originally Posted By: Jim_
Originally Posted By: MacBozo
Yep! I turned off USB Overdrive and that seems to have helped a little.
Meaning what? What is not still working?

Uninstall USB OD totally if something is still broken, the uninstaller is in Utilities. Reboot afterwards.

Ah-ha! It was USB Overdrive. I now have full functionality (from the trackpad.) wink