This should be removed from the config file then. Could I configure serial1=modem I guess the part that I don't understand is, on windows you alread have com1 and com2 so you just set realport=com1 but on the mac, you don't have such a thing. they are all /dev/tty ports. I tried using realport:/dev/ …

I am trying to get a QBasic program that I have running under Windows 98 to run on Mac OS X under DosBox. I have the program running correctly, however I am unable to get it to recognize the Keyspan USA-19 that I have connected. I have tried a variety of settings in the prefs file for the serial …