12-02-2007, 09:32 PM
When I installed Leopard, I had a USB audio I/O box hooked up and for some reason, it defaulted to using that for all audio output. Did you double-check that you're sending sound to the built-in speaker or microphone output?
It could also be the old out-of-spec audio setting problem, in which case you might have to visit the Audio MIDI Setup app (in the Utilities folder) and set it to use your Built In Audio output at 44100.0 Hz, 2 ch. 16 bit.
It could also be the old out-of-spec audio setting problem, in which case you might have to visit the Audio MIDI Setup app (in the Utilities folder) and set it to use your Built In Audio output at 44100.0 Hz, 2 ch. 16 bit.