I HAVE the same problem. I running Minilss on a 486 computar. I first try to identity Com1 and com2 using PROCOMM AND other programs that uses the coms. 2nd. I am intend to use a Rs-232 RadioShack led indicator in order to identify the function of all rs232 pins. (Txd, Rts, etc.) And the idea finally on the set-up is to change the address of RS-232. I will also change the speed of the computer CPU speed.