FLVPlayback component unresponsive when switching flv's...

I have an FLVPlayback component on stage with 4 buttons.

Each button loads and plays a different .flv into the FLVplayback component, even when pressed while playback is engaged. This all works perfectly on my local system, no rocket science there.

However (why is there always a however...?)

When everything's uploaded to the server and tested from my webpage, the first .flv chosen will play. After that, whenever any of the other buttons are pressed, the player ignores the command and the play and stop buttons grey out, the seekbar handle vanishes and I can't control playback any more (the volume and mute controls are still operable though). I have to refresh the page to gain control again.

Anyone have any suggestions or likewise experience with this issue?
Thanks...

(This is Flash 8 and AS 2.0)