mixer_store (s, AC97_PC_BEEP_Volume_Mute , 0x0000);
mixer_store (s, AC97_Phone_Volume_Mute , 0x0000);
mixer_store (s, AC97_Mic_Volume_Mute , 0x0000);
mixer_store (s, AC97_PC_BEEP_Volume_Mute , 0x0000);
mixer_store (s, AC97_Phone_Volume_Mute , 0x0000);
mixer_store (s, AC97_Mic_Volume_Mute , 0x0000);