I have a 600 mhz ibook with no sound. Everything else seems to work. I have tried upgrading software, firmware, reset the PMU, checked to make sure that the speaker cable is properly connected to the motherboard, checked all the settings and no change. When plug in some head phones I get some white noise but nothing else. Has anyone else experienced this and fixed it short of replacing the motherboard? Any help would be appreciated. Thanks, Richard Jepsen rpjepsen at gmail.com -------------- next part -------------- An HTML attachment was scrubbed... URL: http://listserver.themacintoshguy.com/pipermail/ibook/attachments/20061113/c05cd5c1/attachment.html