Sound not working under Lion. No output device. Need fix!

Hi there,
after installing Lion 10.7 I never managed to get my sound working. Under System Preferences -> Sound I got no sound devices installed. Same happens when I open Audio-Midi-Setup. Everything is greyed out, can't even add something. Audio-Midi-Setup also will CRASH when trying to configure anything.
I tried already everything as suggested in forums:
- Repaired Disk Permissions
- Rebootet several times
- Reset PRAM
- Reinstalled OSX Lion again again and again
- Updated to 10.7.2 (all the same crap)
- Deleted some plists and stuff as suggested by users
- Ran Apple Hardware Test from my second SL Applications Disk
I've spent hours and nothing seems to work with this crappy OS. Apple, we really need a fix for this!
Lion = Windows Vista!

Hi,
not sure if this helps, but you can try. I installed Lion today and found myself in a Czech localization of Mac OS. (I had Czech set as my preferred language, but Czech localization was not available before Lion, so this was new for me.) Since I found the localized folder names extremely confusing, I decided to switch to English. However, after a reboot the sound stopped working and I experienced exactly the same problems as you're describing. Out of desperation I tried switching the localization back to Czech and voila, the sound is working again. Let's hope this gets fixed soon.

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