No, it wasn't jerky at all, it looks real nice. I would just say the movement could be a bit slower, now it seems to rush a bit. My suggestion is to decrease the speed with 5 or 10% or so. But it is not a big deal though.
About rundll, I found this:
http://www.northcode.com/forums/showthread.php?t=5830
About rundll, I found this:
http://www.northcode.com/forums/showthread.php?t=5830