Bougt an n-gauge Yard Boss set today - had to reconnect the engine to the tender - ran 3/4 way around the layout and then just stopped!  Now it wont run.  Anything special i should check for?  (Ran another train on track so power/track is fine.)

At a loss here.  I am used to O and S guage.  This is a present for my father-in-law.

Thanks!