have an atlas MP15 DC 52305 #504 caltrain. today is the first time i have ever taken this out of the box to try to run it ever since buying it brand new many moons ago. still a newbie at all of this. placed it on my test track with a simple kato standard power pack just to test run it, doesnt work, only lights come on depending which direction i set the knob to. no movement I figured, maybe i bought a dcc version (i never do), so i swapped the power pack with my digitrax zephyr. typical squeal of a non dcc locomotive on the track using a dcc power pack but i figure i set it to 00 (analog) and try to run it. Same as the kato pack, only lights come on depending on what direction i set it to and no movement but with squeal. and after the 3rd try now when i set the loco on the track there is no more squeal, only the lights come on. any ideas?