"ob_flush(): failed to flush buffer"

I'm getting the following error message repeated approximately **5,000** times in my php error logs... one message right after the other.... Though I haven't definitely pinnned it down to audio.module, it seems that my server load starts to creep up persistently after this and eventually my dedicated server locks down when the server load hits about 15.

[Fri May 11 14:13:36 2007] [error] [client 76.105.83.29] PHP Notice: ob_flush(): failed to flush buffer. No buffer to flush. in /home/ithou/public_html/modules/audio/audio.module on line 1560, referer: http://www.ithou.org/modules/playlist/audio_playlist/players/xspf_player.swf?playlist_url=http://www.ithou.org/?q=node/615/xspf&player_title

I am on Drupal 4.7.6 using the following version of audio:

// $Id: audio.module,v 1.51.2.48 2007/02/19 03:38:39 drewish Exp $

and this version of audio_playlist.module

// $Id: audio_playlist.module,v 1.3.2.8.2.1.2.1.2.1.2.1.2.1 2006/11/17 18:41:46 zirafa Exp $

Any thoughts or assistance would be much appreciated.