Bon ben j'ai trouvé la soluce...merci google mon ami !!!
"Hi, All
i've found the solution for Windows XP SP2
1 After Downloading the latest HD Audio Driver, run setup.exe and then reboot (setup.exe will install kb888111xpsp2.exe patch for windows xp SP2 automatically)
2 restart your machine
3 if your audio still not work, Right click at My computer, select manage, at left panel select "Device manager",
4 go to "System Device", you'll see yellow mark on the device named "PCI Device", right click at the "PCI Device", select update driver
5 select your Realtek HD audio driver path and go to Directoty "WDM" such as c:\driver\audio\HDAudio\WDM and then click open
6 Windows will install Microsoft UAA Driver , and install your HD Audio driver automatically
7 reboot your machine again
8 enjoy your cool music
good luck"