I had a new harddrive installed and the audio seems to be giving me problems. When I start up my Powerbook I can hear music but i cant adjust the volume nor can i mute it both on my keyboard and in system preferences. When I put my headphones in, it continues to play off of my mac's speakers. If i plug my headphones in and restart it will only play out of my headphone but either way i cannot adjust the volume. What do i do?


Please help. Thanks!