All, I have just set up a new(ish) PC running Windows 2000. When I plug the LPT cable from my DX Doubler into the PC the transmitter goes to transmit. I don't get this with my laptop or my old PC. I assumed it was a hardware problem, but it doesn't happen if I switch off the PC. As soon as the PC boots it keys the TX. Anyone got any ideas? Stewart GM4AFF