Kmix: mixer cannot be found

[Lian Liming <lianliming@realss.com>]

Hi all,
   I am using kde and my sound card can work under the kde environment. 
I can use xmms or mplayer to play music or video. I can also heard the 
sound of kde startup.

   But when i want to use kmix to control the volume, it reports "mixer 
cannot be found".
   I don't know what is the relation between sound card and mixer. I 
wonder why my sound card can work well with that mixer cannot be found.

   What is the possible wrong?

    Thank you for suggestions