Hi again, I was informed by Soundtraxx that the Prodigy just is not powerful enough ( with out the booster ) to get all the inputs right every time in toady's more powerful decoders , so it can get the input wrong...thus you have know idea what the cvs and address are set to, so that makes the added power and readback ability a necessity . have You down loaded all the manuals from the Soundtaxx web site? I had to read them over and over to finely understand them and get the info I needed, after that it was a easy to fix all of my decoders. as fore the Address problem with the booster I fixed most of them on the program track just by resetting them....but if that fails you must set CV 17 - 18 and 29 first ( if thy are Wrong ) to the specks in the Manuals.