Any body else experiencing issues with these? When i open hyperdock it says: HyperDock needs assistive devices support to operate. Please enable "Access for Assistive Devices" in the Universal Access pane of System Preferences, or click 'Enable' to let HyperDock do it for you. I don't see the universal access in system preferences? Hyperdock is something i cant do without. Thankful if only ugraded my rMBP. Wont be upgrading my iMac until i know this works!