Can you help me ? i have AMD athlon 64 x2 Dual Core Processor 5200+ 2.61 GHz and my graphic tarjet is NVIDIA geForce 8500 GT and i have the same problem , I add the hpl.log 
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Version 1.20 - s0-539
-------- THE HPL ENGINE LOG ------------
Engine build ID 20101021192547
Creating Engine Modules
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 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 generate module
 Creating haptic module
 Creating scene module
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Initializing Resources Module
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 Creating loader handlers 
 Creating resource managers
 Adding loaders to handlers 
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Initializing Graphics Module
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Init lowlevel graphics: 1024x768 bpp:32 fs:1 ms:0 gpufmt:2 cap:'Amnesia - The Dark Descent - Loading...' pos -1x-1)
-1x-1)
 Setting video mode: 1024 x 768 - 32 bpp
 Init Glew...OK
 Setting up OpenGL
  Vendor: Microsoft Corporation
  Renderer: GDI Generic
  Version: 1.1.0
  Max texture image units: 3
  Max texture coord units: 4
  Max user clip planes: 6
  Two sided stencil: 0
  Vertex Buffer Object: 0
  Anisotropic filtering: 0
  Multisampling: 0
  Texture compression: 0
  Texture compression S3TC: 0
  Auto generate MipMaps: 0
  Render to texture: 0
  Max draw buffers: 13
  Max color render targets: 21
  Packed depth-stencil: 0
  Texture float: 0
  GLSL Version: (null)
  ShaderModel 2: 0
  ShaderModel 3: 1
  ShaderModel 4: 0
  OGL ATIFragmentShader: 0