Could you please run arduino from the terminal for me? I get this when I open the IDE from the terminal:
WARNING: RXTX Version mismatch
Jar version = RXTX-2.2
native lib Version = RXTX-2.2pre2
The IDE does open after that. But if I'm right, rxtx is what is used to communicate with the board. Could a version mismatch be the cause?
: I got it to work. It was stupid of me to overlook this. The wrong serial port was selected :-|