After reinstalling Mac OS X 10.7.5 I've lost sound in iTunes
I've checked the settings in the Sound part of System Preferences so that the "internal speakers" are selected. No sound comes through them, nor through the headphones. But for other audio or video playback, the sound is perfect on my MacBook Pro (mid-2009 model). Any suggestions?
MacBook Pro (13-inch Mid 2009), Mac OS X (10.7.5)