hi i am attempting to utilize a USB to Serial adapter that converts into an audio jack into my training board. i am trying to get the adapter to work. i have dounloaded all drivers and confirmed that it works properly, but when i try to use it in Programming editor it says, "serial port error-port not present or already in use." tech support told me that i may have to change some numbers for that port (i think he said IRQ numbers?) but thats all he could tell me. does anyone know what i need to do to get this thing working? the adapter is an AirLink101 Model#AC-USBS and the PICAXE is the 08-M. thank you for any advise you got.