I use OS X 10.4.10.
When i open "Serial Server",it show me the word "Port /dev/tty.usbserial-A4001bKo in use".So Arduino can't talk to Flash.
Please help me....thanks
What else do you have running? You need to close the Arduino serial monitor (and possibly close the environment altogether) along with anything else that might be talking to a serial port (e.g. a PDA sync application or an over-aggressive firewall).
Were there any files or instructions that came with it? With Processing, you need to run the macosx_setup.command script before using the serial port. This may require something similar.