Sound in MSI VR 420 Laptop

After I bought my first laptop MSI VR 420 with genuine Vista installed, I installed Kubuntu 8.04 Hardy. Everything one fine except the sound was not working.

dmesg produced this error

hda_codec: Unknown model for ALC883, trying auto-probe from BIOS..

... ... ...
lots of headaches
... ... ....

And finally,
This was how I made it working.

modprobe -r snd_hda_intel
modprobe snd_hda_intel model=3stack-dig

And it worked.

The first thing I played was
http://www.meronepalma.com/song/425