Guys, I think I screwed up.  I ran my Bachmann 4-4-0 on full DC before I was able to wire up my Digitrax DCC.  Once I did wire up my DCC, I could not obtain my locomotives address on my programming track.  I followed all the instructions in the manual including resetting to factory settings (CV and unlocking the codes (CV 15 and 16), but nothing resolved the problem.  I tried "00" and "03" as an address and nothing.  Do you have any suggestions?  Is the decoder fried?  Thanks in advance for your help.  Phil