Flvplayback issue

hey all,

Im trying to make a flvplayback that will load an flv/ f4v from a url. (that working great).

my issue is that I want to make hot sopt bar that by pressing it I will be able to move in the time line of the movie.

iv insert the cuepoint vis code and manage to deploy and it is also working.
so what is wrong…
the movie start ok but then it looks like it is overloading and starting to go out of sync and then there is a mass all around.

any idea on how can i create chapter base navigation ?