[MCL-169] Legacy: LWJGL OpenAL: Failed to initialize audio client

Sound isn't working anymore (it did in all previous versions)

That's what the Launcher says:

Client> 2013-04-25 16:02:45 [CLIENT] [INFO] LWJGL Version: 2.9.0
Client> 
Client> Starting up SoundSystem...
Client> Initializing LWJGL OpenAL
Client>     (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
Client> AL lib: (EE) DoReset: Unhandled channel config: 8 -- 0x000000ff
Client> AL lib: (EE) DoReset: Unhandled extensible channels: 8 -- 0x000000ff
Client> AL lib: (EE) DoReset: Failed to initialize audio client: 0x80070057
Client> Exception in thread "Thread-6" org.lwjgl.openal.OpenALException: Invalid Device
Client> 	at org.lwjgl.openal.Util.checkALCError(Util.java:55)
Client> 	at org.lwjgl.openal.ALC10.alcCreateContext(ALC10.java:251)
Client> 	at org.lwjgl.openal.AL.init(AL.java:168)
Client> 	at org.lwjgl.openal.AL.create(AL.java:138)
Client> 	at org.lwjgl.openal.AL.create(AL.java:102)
Client> 	at org.lwjgl.openal.AL.create(AL.java:201)
Client> 	at paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164)
Client> 	at paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576)
Client> 	at paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572)
Client> 	at paulscode.sound.CommandThread.run(CommandThread.java:121)
Client>     ERROR MESSAGE:
Client>         SoundSystem did not load after 30 seconds.
Client> 
Client> Starting up SoundSystem...
Client> Switching to No Sound
Client>     (Silent Mode)

Update:
Sound is only working when i start minecraft with the old launcher.
For example: Audio is working when i start 1.5.2 with the old launcher.
But it doesnt work when i start it with the new launcher.