DCC Changing the address on the 44 Tonners

[44tonner]

I have several 44 Tonners and 70 Tonners DCC N scale Bachmann locomotives.  I have tried to change the short address on all of them with no luck.  I'm using a NCE Pro-Cab.  I can change address on Atlas & Kato Locos with no problems, but not on any of the Bachmann DCC N scale locos.

Any suggestions, yes I've tried putting the 1000 ohm resistor across the programming track.  That didn't do it either.

Thanks

[skipgear]

Program them in OPP's mode. Don't bother with the programing track.