I've just had a look at this again, and with my cable (DC-20) pins 6,7 and 8 are wired together (shorted at the DB9 end). I'm not sure what effect this will have, but I'm sure someone can comment. I was a bit surprised that the pin-out on Jack's site has no shorting. Years ago when I used to make up serial cables all the time, I can never remember putting anything together without any shorting at all. Can you just check the "real cable" again Jack?

Tim.