possible DCC system problem?

[Green_Elite_Cab]

Have you checked the speed CV's..?? It might be that CV's 5 & 6 (high top speed and mid-range speed) are set too low. If all CV's are OK, switch the decoder for another one and see how it behaves with the other decoder.

I'll look into it, but the only thing about the decoder i've changed is the address. I would think factory settings would work fine.