Hi All
Many thanks for the helpful replies.
Just to expand on what I do.  I use skype with video and speech.  The video 
and speech is perfect for about 18 minutes.  After this time the video picture 
produces a still picture and the sound becomes garbled.
I found that exciting the video link and reconnecting still produces a still 
picture and garbled sound.
To restore the video link with good video and good sound I have to excite 
skype and restart.
This happens on both a 32 bit OS, a 64 bit OS.  I have tried machines from 2 
GB to 16 GB of memory and the problem with video and sound still occurs after 
18 minutes.
The video uses a 480x640 picture on a USB webcam.  The sound uses microphone 
and eaphones connected to a sound card.
I am using pulse audio.  I have found that skype on some OS's needs the gnome- 
volume-control to be open before I can get any sound.
Any suggestions on how to increase my video and sound time would be much 
appreciated.
John Eayrs
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