Alsa Underrun problems with Skype

[mbrace7forums at aim.com]

?Sound on Skype is very unpredictable. Sometimes it works well and sometimes it doesn't. I often get brake up?(pauses) with speech. Or I find that the Skype Sound settings in Options have changed. Or before it worked now it won't.



Distro Mandriva 2009.1 Gnome

Starting skype I use root and the console with the following command:



# LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so skype



The web camera works OK Logitech Quick Cam Chat.



I have a Mad Dog Sound card installed although there's a Via card onboard which is disabled.



Sometimes the settings



Camera

Pulse

Pulse 



work OK and then it doesn't I get a message in the open console box Under run detected.



Rebooting sometimes helps but not always



Another setting that sometimes works is



CM1830 dev 0? 



Any ideas?. 
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