ET sound problem help please

I'm writing this on behalf of a friend not me as he don't use crossfire. But he his having problems with not getting any sound from ET.

He can still hear the xfire noises and ventrilo so it is not a sound card or speaker problem; but is coming straight from ET.

He has tried the following sound settings:

//---[ Sound Settings ]------------------------------------------\\
seta s_bits "32"
seta s_channels "2"
seta s_defaultsound "0"
seta s_doppler "1"
seta s_khz "44"
seta s_mixahead "0.15"
seta s_mixPreStep "0.02"
seta s_musicvolume "0"
seta s_separation "0.5"
seta s_volume "0.7"
seta s_wavonly "0"

And tested my config too:

//.../s_sound

seta s_wavonly "0"
seta s_defaultsound "0"
seta s_mixPreStep "0.05"
seta s_mixahead "0.2"
seta s_khz "14"
seta s_doppler "no"
seta s_separation "0.5"
seta s_musicvolume "0.0"
seta s_volume "0.55"
seta com_soundMegs "32"

But none of the following will still fix his sound. He has tried creating a new profile and using cvar_restart but nothing is happening. Reinstalling ET is not an option because of the OC signups and pb_guid. If anyone knows what will help it will be greatly appreciated.

Thanks (: