Caludio's scroller acting weird

i had claudio’s scroller fla saved on my hd and i never really had a reason to use it until recently. so i did. i had a problem where my dragger skips like a pixel to the left so i recreated the file almost exactly like claudios in a separate movie to see if maybe it was the fla i was originally working in, but it still did the same thing. only thing i did was take out the arrows cuz i dont need them. please take a look and let me know why this is jumping one pixel to the right on the initial drag of the dragger, and why the original doesnt do it, and how to correct it. thanks in advance.

claudios file:

test recreation: