no sound in pc-bsd

[goraxmax]

Hello,
i've just installed pc-bsd 9 (go out linux ), without problems,
except the fact i have not sound

i tried "kldload snd_driver" (in root)=>no results

just below the result of

cat /dev/sndstat



FreeBSD Audio Driver (newpcm: 64bit 2009061500/amd64)
Installed devices:
pcm0: <HDA ATI RS690/780 HDMI PCM #0 HDMI> (play)
pcm1: <HDA Realtek ALC892 PCM #0 Analog> (play/rec) default
pcm2: <HDA Realtek ALC892 PCM #1 Analog> (play/rec)
pcm3: <HDA Realtek ALC892 PCM #2 Digital> (play/rec)
pcm4: <HDA Realtek ALC892 PCM #3 Digital> (play)

any idea?

Thanks for your responses
goraxmax