I have recently finished building my Prusa i3. In the Arduino Software, the options “ports” is disabled (as attached). When I connect the Arduino (Arduino Mega 2560) to the computer (Windows 10), four orange leds turn on in the Arduino board and a led on the RAMPS blinks twice to later switch off, but the option “Ports” is still disabled. I also looked in the Device Manager, and after enabling the option “show hidden devices” neither the option “Ports” nor the option “Other devices” appear.
How can I fix this problem? I also tried in Ubuntu 14.04 and I had the same problem.
Thank you very much.