I am trying to re-program my 396XT using the latest ARC XT Pro software. I've done it dozens of times before. But now, the software is not detecting the radio. When I try to "Read" or Write" to the radio, I get a message that no radio is detected. Then when I close the error window, the radio beeps. (Also, If the radio is in "hold" mode, it beeps and comes out of hold mode). So the software IS doing something with the radio, yet it says no radio is detected! ALL of the parameters, baud rate, ports, are correct, and I have even tried all the various values as well. Could a short fall the radio experienced recently have damaged the small connection on the radio or internal circuit? The radio itself works fine, with no aparent damage. Do I risk a master reset of the radio and lose all my data? Should I send it somewhere for repair? Anyone else experience this? Thanks!!!