I have efilive7.3 and I have my lc1 free air cal. and the problem I have is my laptop doesent have a serial port so I got the serial to usb conector and now when I try to open the lm programer it will not open and says no conection to serial port. conect and try again. HELP. I am guesing it is a computor problem but I have removed lm programer and reinstaled with same results.