FC4 ___> problem with sound

[Adel ESSAFI]

Hi list
I have installed FC4 on a toshiba laptop with realtek sound card. the 
problem is that the sound dont work.
Can you please, give me some link to solve this problem.
Thanks


[adel at localhost ~]$ /sbin/lspci
..........................
00:1e.2 Multimedia audio controller: Intel Corporation 
82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Audio Controller (rev 03)
...........................