FWIW, I bought a 2 port PCI card (PCI-200L) from ByteRunner and it installed great right out of the box. I now have 2 additiona comports; in my case COM 5 and COM 6. I use ports for rig control, pk232, cw and, if necessary, ptt. I am set up to use the rig control port for PTT. The customer support person is terrific, too. http://www.byterunner.com 73, Dave, K7JJ -- David E. Earnest k7jj@arrl.net