Mine works well with my Windows laptop using the standalone app, and on my Linux PC with custom software. But it won't work at all on my Linux Netbook, which is the machine I'm going to put in the car. It detects it fine, but it just doesn't respond to any commands. Could it be the netbook is not providing enough power? I've bumped up the power to 300mA using the FTDI tool in accordance with the instructions, but it doesn't seem to have made any difference.