These arrived yesterday, with matching coaches. Both are Ives 3241s with a 184 buffet and 186 observation. The green one does run, but needs a new light bulb, as I believe it shattered during shipping. The red one, unfortunately, doesn't move. It buzzes loudly and at one point, started smoking. I have no idea what was going on, but once I saw smoke, I stopped trying to run it. Anyone have an idea why its not moving and smoking? Would this be an easy repair?