Hp pavilion dv4 1106 ee xp sound driver

Hello,
i need the sound driver for my laptop HP pavilion dv4 1106 ee
i did instal windows xp and everythings is working fine but the sound not working..


i go and check in Device manager and i find the sound is working ,,,but there is no sound,,when i open RUN then i type dxdiag the enter,,then i go to the sound,,,i find there is NO driver was installed

haw can i fix this problem,,,i realy need your help..

kindly send me any answer to my email
nanakst@yahoo.com
thanks

regards
chad