First time using Knoppix/Linux, with the Knoppix V3.6 live CD, WITHOUT doing anything on my own I can access the web, view movie and play mp3 files....except there is NO sounds...(no sound also during the loading of desktop....)???

I tried Knoppix alsa, not working....

Can anyone help me? I 've Asus P4P800SE motherboard with (AC97) ADI 1985 on board sound.

Thanks for your help in advance.