Thanks. It did not work, but I think i’ve found the problem. It’s not the decoder at all, but a short from the locomotive to the track/programing track that is intermitent. It is a plated brass loco with plated brass truck side frames and I think that there is occasional contact–somewhere-- that caused the problem. I got it on the layout for a minute or so and all functions worked–sound, lights, fwd/rev-- after checking clearences. Later, it shur down, so I’ve got to just do some electrical troubleshooting. Then, I’ll redo CV 113 and see what happens.