Digitrax decoder will not stay programmed to any address

[Hooked]

I have a Bachmann EZ Command controller with 2 Bachmann decoders and one Digitrax DH 123 decoder, that work great, my problem is with my new Digitrax DZ125 decoder.
It will not remember any address I tell it to, it will work great as long as I don't turn the power off.
As soon as I do that and then turn it back on the engine will not move, have to reassign the address again.
I took my engine HO 2-8-0 to my LHS where they have layout powered by NCE, everything worked great with the NCE controller.
Any ideas on what my problem might be?
Thanks

[rustyrails]

There are only two things that can be malfunctioning--the decoder or the EZ Command.  It doesn't seem to be the decoder.  Or it may be that neither component is malfunctioning--they're just having a disagreement.  Swap out the Digitrax decoder.  If a new decoder fixes the problem thank the electronic gremlins and go back to enjoying your railroad.  Sell the old decoder on e-Bay with a clear conscience.  After all it worked fine at your LHS.  Good Luck.
Rusty