I just got a new train for Christman, and the very first time I turned it on, it worked fine, but when it got halfway around thr track for the first time, I pressed one of the Accessories buttons, and the train stopped and hasn't moved since.

I've tried unplugging everything and pressed both Accesspries buttons, and moving the train, but it hasn't budged since and the light on the engine doesn't even come on. Nothing.

Does anyone know what to do?