Steam Penumbra Collector Pack version crashes on launch

[vbhokie94]

I downloaded the Penumbra Collector Pack off of Steam and cannot get it to run on my system. The game crashes almost immediately after I try to launch it. I think the problem is with the video card. I have an nVidia 6800 GTX and have the latest drivers installed. The same problem happens with both Overture and Black Plague. The strange thing is that I also downloaded the demo and it seems to run fine. However I noted that when I ran the demo that Vista changed color schemes from Windows Vista Aero to Windows Vista Basic. This doesn't happen when I try to run the full version. The 2nd log is from running the Overture demo.

BlackBox returns the following exception:
penumbra.exe caused an EXCEPTION_ACCESS_VIOLATION in module penumra.exe at 001B:0056A854

-------- 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
CG ERROR : The file could not be read.
-----------------------------------

**********************DEMO VERSION***********************
-------- 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... Success!
Device name: Generic Software
Number of mono sources: 32
--------------------------------------------------------

Initializing Game Module
--------------------------------------------------------
Adding engine updates
Initializing script functions
--------------------------------------------------------

User Initialization
--------------------------------------------------------
WARNING: Language entry 'EventKeyInNoPower' in category '01_10_small_shaft' already exists!
Initializing Penumbra: Overture Episode 1
Version $Rev: 1789 $
Date $Date: 2007-11-13 03:43:19 +0100 (ti, 13 nov 2007) $
Trying to load vertex program!
Success!
--------------------------------------------------------

Game Running
--------------------------------------------------------

[vbhokie94]

I had all three of the Penumbra games installed (Overture, Black Plague and Requiem), so I deleted all of them and only reinstalled Overture. This seems to work as now the game actually launches and at least so far the game plays with no problems. Don't know if I'll have to uninstall Overture when I want to play the others, but I'll deal with that later if necessary.