asterisk users - Oct 2003 - Help: Segmentation fault. Something about smoother

Hi All
I am having this problem when setting up a H323 call.
Can anybody tell me what is going on?

Thanks
Serge
------------------
NOTICE[245776]: File chan_oh323.c, Line 1293 (oh323_write): H323:1637: 
Format changed from 4 to 8.
WARNING[245776]: File frame.c, Line 76 (ast_smoother_feed): Smoother was 
working on 4 format frames, now trying to feed 8?
ERROR[245776]: File chan_oh323.c, Line 1380 (oh323_write): H323:1637: Failed 
to fill smoother.
WARNING[245776]: File file.c, Line 512 (ast_readaudio_callback): Failed to 
write frame
    -- Playing 'vm/109/unavail'
  == Spawn extension (netmeeting, 109, 2) exited non-zero on 'H323:1637'
ClearCallThread::ClearCallThread: Object initialized.
Segmentation fault

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