Santa brought me a brand new 50 last year but as I didn't have any track at the time due to children, house improvements etc etc I have been unable to run it until now. I took it out of the box last night and placed it on the track. It works very poorly indeed! I have 2 old H&M controllers. On one of them the loco moves very jerkily and exhibits odd behaviour with its lights. When moving forwards the white lights are on at the front and the red at the back but, the red lights are flickering at the front and the white are flickering at the back! So all the lights at each end are operating at the same, only the 'wrong' set are very flickery and irregular, just like the motion!
If I use it on the other controller it will move about 6 inches in the same manner as above and then stop completely and I think it trips out the controller.
After all this time (almost a year) I doubt the vendor will be interested so if anyone can offer any advice I would greatly appreciate it.
ROB