[RyanCahoon]

Did it work to use the international version as was suggested on the CMUCam forums? Does it work if you use the java version of the gui?

You might not be seeing the version message if you turn on the camera before you start the viewer application or connect to the port. What happens if you cycle power to the camera after the application is running?

Try opening a terminal emulator (I use TeraTerm), set the serial port properties to 115200 Baud, 8 Data bits, 1 Stop bit, no parity and then try typing gv and pressing enter. Does the version get printed? If you can't see it, you either have a communication problem, or the firmware is not running (correctly) on the camera. If you are using a USB-serial converter, try it on a computer with a built-in serial port, as I've had some USB-serial converters not work when sending camera data (both on the CMUCam2 and Blackfin Camera, but actually haven't used the CMUCam3 before).

--Ryan