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Today at a train show I purchased a Bachmann GP35 with DCC installed, and for some reason when I tried to program it (default adress was 3 for some reason) then the Digitrax Zephyr would flash d_nd, meaning there is an open circut on the programming track.The loco runs fine on the layout, so the decoder is connected, and I tried my Atlas U23B with a TCS T1 decoder on the programming track, and it worked fine, so the programming track is also fine.I tried ops mode programming (after removing all the other locos on the layout) and it wouldn't let me, although that may be a built in feature of the Zephyr.I also tried seeing if it was the Bachmann decoder that couldn't use Paged mode programming (although the Zephyr manual says it works with all decoders....) and the other very similer loco (Bachmann DCC equipped GP30, same line, decoder, etc but different shell) also got a d_nd response.This has got me really stumped. Could someone please help?Thanks,
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