Thunderbolt Display losing sound
This problem has become more and more frequent and the only way to get the sound back (temporarily) is to do a reboot until it happens again! Happens while running in OS X Lion 10.7.3 on my MacBook Pro i7 (early 2011) wether using the TD with MBP in clamshell mode or extended desktop with TD as main display of course. Done all the usual things, such as check the sound output device is still set to 'Display Audio' within System Preferences > Audio and checked the Audio MIDI Setup utilities within Utilities and that seem in order showing the small speaker and mic Icon alongside the Display Audio as the active device.
This is one of 'several glitches' that I'm currently experiencing (with what is otherwise a very impressive high resolution Display) which is bugging me the most, having the most impacting effect.
Has or is any one else experiencing this? .. I was surprised that a search didn't match any exact problems.