As I said, the decoder appears to be absolutely fine, but there is no power to the motor, or at least, the motor is not responding. Neither is the sound card. The TC was stopping the red tail light working, if I removed it from the train, all lights worked perfectly. It was Ian's surmise that the motor had blown, although I would have assumed that the sound card functions would be running, prior to the failure, the set went haywire, tearing round the track, out of control. I pulled the power, waited 10 minutes, restarted, and the same thing happened. Third time, nothing! So, I don't know what to do now, still waiting for assistance/advice from either Locomotion or Charlie Petty. If I don't hear today, I will have to ring one of them again. Thanks for your input, though, greatly appreciatedRod