already re-install new kernel (version: 2.6.12.4) & succeed in installing alsa (version 1.0.9b).
Audio output is USB audio. Could you tell me how to install USB audio.
And by the way, under the GNOME-Windows,I try to click to audio icon,computer give me a message for" couldn't open mixer device /dev/sound/mixer"
Could you tell me what is the reason behind of this message: does it means that alsa is not installed correctly?