Choppiness in image slideshow

Hey everybody,
I’m a bit of a flash newb when it comes to action script. I’ve got this infinite slideshow scroller here, and it works great, but the output is a bit choppy, and tends to get hung up sometimes. fps is 150, frame rate 30. there’s no need to look at the xml data as it doesn’t control these variables.

if anyone is interested in skimming through the code, i wouldn’t mind :wink:

but if you also just have any thoughts, that would be great too.