Infinite scrolling MC with easing

I’m having trouble with a scrolling portfolio type of movie that I’ve created. It contains a movieclip with thumbnails on it and a left and right button that scroll the thumbnails back and forth. It uses easing to move to each position. It also disables the buttons while the movieclip is scrolling to prevent throwing the movie off alignment. What I’m trying to accomplish is to give the scrolling feature endless scrollability. I have duplicated the slidebar to reposition whichever one necessary to be next in line as the user scrolls through. My code seems to be working but not very well. Sometimes I see one of the slidebars shoot accross the screen to it’s correct position, sometimes you have to wait a couple seconds for it to move over. It’s acting very quirky. I’ll post the .FLA and if someone could take a look, I would greatly appreciate it. Thanks! BTW, it’s an MX2004 file.

I solved my own problem…I was using two identical but seperate strips of thumbnails (each a movieclip). When one would approach a left or right end, I would flop the other to be next in line. I solved my issue by creating one single movieclip out of the two and just repositioning that one as it approached an end.