I have had an ongoing issue where when I connect my iPhone headphones to my macbook pro, the audio output will switch back to the internal speakers. It will only stay on the headphones if it is actively outputting audio. I took it to a genius and he said it is a driver issue with snow leopard. He suggested I reinstall with leopard and then upgrade to snow leopard from that, because the audio driver with leopard should work and it will not get replaced by snow leopard. Anyways I did not want to reinstall, so I installed leopard to an external hard drive and it seems to be working. I wanted to know if anyone knows where I can just find the audio driver file, so I can copy it instead of going through the whole reinstall process. Also, heres a video of the issue. I recorded it after the first time I took my computer in, it didnt seem to happen in front of the genius. http://vimeo.com/9611108 Thanks I am on Snow Leopard 10.6.3 on a 17" Early 09 Macbook Pro.