When I go to load Minecraft 1.7.4 I see an error in the Dev Console. The game works fine but the sound engine won't load.

17:17:41 INFO]: Client> Starting up SoundSystem...
[17:17:41 INFO]: Client> Initializing LWJGL OpenAL
[17:17:41 INFO]: Client> (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[17:17:41 INFO]: Client> AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
[17:17:41 INFO]: Client> AL lib: (EE) MMDevApiOpenPlayback: Device init failed: 0x80004005
[17:17:42 INFO]: Client> Error in class 'LibraryLWJGLOpenAL'
[17:17:42 INFO]: Client> Unable to initialize OpenAL. Probable cause: OpenAL not supported.
[17:17:42 INFO]: Client> ERROR MESSAGE:
[17:17:42 INFO]: Client> Could not locate OpenAL library.
[17:17:42 INFO]: Client> STACK TRACE:
[17:17:42 INFO]: Client> org.lwjgl.openal.AL.create(AL.java:151)
[17:17:42 INFO]: Client> org.lwjgl.openal.AL.create(AL.java:102)
[17:17:42 INFO]: Client> org.lwjgl.openal.AL.create(AL.java:201)
[17:17:42 INFO]: Client> paulscode.sound.libraries.LibraryLWJGLOpenAL.init(LibraryLWJGLOpenAL.java:164)
[17:17:42 INFO]: Client> paulscode.sound.SoundSystem.CommandNewLibrary(SoundSystem.java:1576)
[17:17:42 INFO]: Client> paulscode.sound.SoundSystem.CommandQueue(SoundSystem.java:2572)
[17:17:42 INFO]: Client> paulscode.sound.CommandThread.run(CommandThread.java:121)
[17:17:42 INFO]: Client> ERROR MESSAGE:
[17:17:42 INFO]: Client> Could not locate OpenAL library.
[17:17:42 INFO]: Client>
[17:17:42 INFO]: Client> Starting up SoundSystem...
[17:17:42 INFO]: Client> Switching to No Sound
[17:17:42 INFO]: Client> (Silent Mode)
[17:17:42 INFO]: Client>
[17:17:42 INFO]: Client> [17:17:42] [Sound Library Loader/INFO]: Sound engine started
[17:17:45 INFO]: Client> [17:17:45] [Client thread/INFO]: Created: 1024x512 textures/blocks-atlas
[17:17:45 INFO]: Client> [17:17:45] [Client thread/INFO]: Created: 512x512 textures/items-atlas
[17:17:58 INFO]: Client> [17:17:58] [Client thread/INFO]: Stopping!