I have a N scale Atlas/Kato U25B-IIb which has idle for 3 months on My large Yard and today I wanted to run the locomotive and was less than successful. The locomotive would run forward then stall then run forward again and then stall. This same process happen when I ran the locomotive in the reverse direction. I could hear the motor buzzing when it sat on the track. The Locomotive has TCS CN-GP hardwired in. I use the digitrax DCC system (5A Super Chief with DCS100 command station with a DT400 throttle). So I placed the locomotive on the programming track and the command station beeped 4 times. I then went into programming mode on the the throttle to read the CV values to set what is happening. The First CV value I read was the CV8. The display should have read CV8=153 for TCS decoder, But instead it displayed CV8=NoPG. So I left the locomotive on the programming track and switched off the programming track and successfully operated other locomotives that have sat on the yards tracks for the same amount of time. As frustrated as I am I decided to shut down the DCC system and walk away for a few hours. I came about 2 hours later powered up the the DCC system . The N scale Atlas/Kato U25B-IIb locomotive I left on the programming track was moved over to Yard track and the programming track shut down, entered the 4 digit address of the locomotive into the Digitrax DT400 throttle and the locomotive ran in the forward direction and the reverse direction 3 times each then just shut down. Therefore I moved the Locomotive to the programing track, switched on power to the programming track and immediately the DCS 100 Command station beep four times. I went to programming mode on the throttle to read the CV values. I tried to read the CV8 value again and received the display answer CV8=NoPg. Therfore I shut the system down and removed the locomotive to My work bench. I am frustrated at this point, Therefore I turned to Digitrax support page to search for an answer, but that was futile! So I am turning to members of TrainBoard for Help!! I would greatly appreciate any Help. Thank You.