My makerbuino worked well for about an hour. After turning off, turning it on only brings on the screen leds. No sound, nothing written on the screen. So, I wanted to check if the arduino is at least working enough to write anything on the serial port, but I seem to be out of luck. I can't find a configuration that gives me anything via the usb/serial adapter. Can anyone tell me what is the default config of the serial port? 9600-N-1 or something else?