Hi everybody. Having had to rebuild following a move, have now got to the running trains stage. However I have a problem, any loco I put on the track runs by itself, very, very slowly, even with the navigator wheel on zero. The loco does not respond to any movement of the Navigator control. I have one loco with an LGB onboard decoder and this seems to run OK, and the Navigator is able to control it. It seems the problem is with Massoth XL equipped locos only. Have tried re-installing them on the system but still no luck Any ideas anybody ? Thanks.