Problems with video delay when seeking

I am using a progressive download .flv video (local for now). I have the video synched with slides. When the user clicks on a different slide the FLYplayback component jumps to the appropriate cuePoint using myPlayback.seekSeconds(thisCue);.

The problem is if the user decides to go to one of the later slides there is a long (up to 5 second) delay before the video actually begins to play at the right spot. Once a user has "visited" the end or near the end of the video there is no problem or delay with selecting any slide and the video moving quickly to the appropriate spot.

Any suggestions on what could be happening here? It would seem like the video is not loaded yet, but this is all local.

Any suggestions are welcome.
Thanks

Flash looks for keyframes when you scrub, so one solution is to make sure that your .flv is encoded at the same framerate as your source movie and/or hub .swf.

Also, you can manually set the buffer time on a netConnection and you can set the _soundbuftime property (default is 5) manually.