i just purchased a new Hogwarts Express O gauge train for my family for Christmas. I know nothing about model trains, but assumed since it said it was ready to run out of the box that it'd be simple. I managed to set the track up fine, and the red lights turn on indicating the track has power. When I set the engine on the track, with or without the other cars, it will run for a few inches along the track and then detrail. I've checked that all of the wheels are lined up and it's a new track so there's no dirt or rust. It also doesn't seem to run at a constant speed when it does move, even though I've barely turned up the dial.
Any suggestions would be greatly appreciated since I'd like to have it up and running under the tree for Christmas.
Thanks!