OpenAL error?

[EpicPwn]

Hey guys,
I'm new to the forum.
I have an error, when I try to start any of the Penumbra games, I get an OpenAL error.
Here's the log:
-------- THE HPL ENGINE LOG ------------

Creating Engine Modules
--------------------------------------------------------
Creating graphics module
Creating system module
Creating resource module
Creating input module
Creating sound module
Creating physics module
Creating ai module
Creating gui module
Creating haptic module
Creating scene module
--------------------------------------------------------

Initializing Resources Module
--------------------------------------------------------
Creating resource managers
Misc Creation
--------------------------------------------------------

Initializing Graphics Module
--------------------------------------------------------
Init low level graphics
Setting video mode: 800 x 600 - 32 bpp
Init Glee...OK
Setting up OpenGL
Max texture image units: 32
Max texture coord units: 8
Two sided stencil: 1
Vertex Buffer Object: 1
Anisotropic filtering: 1
Max Anisotropic degree: 16
Multisampling: 1
Vertex Program: 1
Fragment Program: 1
NV Register Combiners: 1
NV Register Combiners Stages: 8
ATI Fragment Shader: 0
Creating graphic systems
Creating Renderer2D
Renderer2D created
Creating Renderer3D
Load Renderer3D gpu programs:
Extrude
Diffuse Vertex
Diffuse Fragment
Fog
Creating fog textures: Solid Additive Alpha
init sky box
Renderer3D created
Creating screen buffers size 800.000000 : 600.000000
Creating programs
RendererPostEffects created
Adding engine materials
--------------------------------------------------------

Initializing Sound Module
--------------------------------------------------------
Initializing OpenAL.
Trying to open software device... FATAL ERROR: Failed! Check your OpenAL installation
Deleting ATI shader to 0
Deleting ATI shader to 0
Deleting ATI shader to 0
Deleting ATI shader to 0
Help, anyone?