macosx 10.9.5 garmin express versione 4.0.20.0 zumo 590 with Full Coverage of Europe 2016.10 installed.
I'm unable to install maps to computer.
The Zumo is connected with usb cable. After clicking 'Install to Computer' the 'Terms and Conditions' form appear, then after clicking on Accept button nothing happens, not even clicking on the Cancel button. I can only quit the application with Command+Q