Just thought I would let all of you know that I received my 10 amp power pack, and FINALLY, my train goes all the way around the track without stopping!!!!!! Whoop, whoop, whoopity, whoop!!!!! I still have some issues to work out, because it isn't perfect, but I think MORE POWER was definitely a key ingredient to success!! What a feeling to watch that engine chug around, with smoke merrily pouring out of the smokestack. 
Thanks to all of you for all of the advice and suggestions!!!!! What a great group of people we have here!

Thanks to all of you for all of the advice and suggestions!!!!! What a great group of people we have here!
Will they send it back to you so you can at least look at it? Glad to hear that they are giving you a good deal on a new one though! Great customer service!
) and he suggested that we try some lead weights on the front somehow (similar to the ball bearings suggestion that you made in the book). I think we will try that and see if it helps. The more feedback I have received and the more I have tinkered with it, the more I am inclined to think that it just isn't making a good connection with the track.