If I disconnect the USB cable that's connecting my product to my Mac while using USB Display, the USB Display icon in my Dock disappears and I am unable to close the program. How do I close it?

• When using USB Display v.1.10 or later, the icon automatically disappears from the Dock when you disconnect the USB cable but the utility is still running. To manually close the utility open Activity Monitor, highlight USB Display Agent, and click Quit Process.