First time fooling around eith trains in 20 years. I bought bachman silver streak set on E Bay, set up 56X36 oval, and I'm super dissapointed. Incredibly difficult setting cars on track (steel easy track) and once I get them all on one or more cars derail after one or two laps. Also set came with 2 locomotives, one doesn't work at all and the other runs sporatically,. I have to constantly nudge it around track or it just stops cold. Is this typical of this caliber set or did I ripped off? thanks for any help.