Our club members have several Spectrum steam engines either DC, DCC and DCC with sound. All our track is Atlas. The DCC sound engines have problems going over the turnouts. Every engine stops will die at a turnout, reset itself and then take off. This happens intermittently and not at the same turnout. The engine can run for several loops and then do this at a different turnout. We have cleaned the engine and the turnouts and it still occurs. All our non DCC sound engines do not have this problem. Broadway Limited and other manufactures do not have this problem. Any suggestions?