Hi,
Thank you for your response but unless I am missing something, I don't think it is going to work.
The only COM port that my PC sees is COM 1 which is the one with the original RS-232 serial port. The test you gave wants a terminal program which you will have to enter a COM port number to communicate with the arduino and there isn't one. so unless I am missing something, I am going to need more info on what I am doing wrong. The only thing that I could see which are communication lines are the ones marked 0-Tx and 1-Rx. Does the loop-back test use these for a serial port? if so, I would have to make a cable with a connector. thanks.