I just got a concerned call from a freind, he just updated his Ibook 300 to mac os 10.2 and he is haveing audio problems. He syas that he now has no bass on headphones or external speakers. Also he can only hear left channel audio. One more quirk, he can get some bass if he pan's the audio all the way to the right, he still gets only left channel audio but it just gives a little bass. Any help would be much appriciated.