Black Plague crashing

[sheepdragon]

Whenever I try to enter a area early in the game, it crashes. It seems to be related to a driver or something, though I'm not sure. The only other games I've had problems with recently are Ghost Recon Advanced Warfighter 1 & 2, though I've got no idea of what the problem is there.
When the game crashes I get a message that "display driver atikmdag has stopped responding and has successfully recovered".

My computer specs are:
Ati Radeon HD4870 (v9.1 driver)
2 GB *something* RAM
Athlon X2 64 6000
Vista SP1

Contents of the log file:

-------- 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: 1280 x 1024 - 32 bpp
Init Glee...OK
Setting up OpenGL
Max texture image units: 16
Max texture coord units: 16
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: 0
NV Register Combiners Stages: 11
ATI Fragment Shader: 1
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 1280.000000 : 1024.000000
Creating programs
CG ERROR : The compile returned an error.
-----------------------------------
core/programs/PostEffect_Motion_fp.cg(32) : error C5013: profile does not support "for" statements and "for" could not be unrolled.
-----------------------------------
Error loading: 'core/programs/PostEffect_Motion_fp.cg'!
ERROR: Couldn't create program 'PostEffect_Motion_fp.cg'
Dynamic loops in motion blur fp not supported, loading static instead.
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
--------------------------------------------------------
Trying to load vertex program!
Success!
All set up done, starting game!
--------------------------------------------------------

Game Running
--------------------------------------------------------
Loading collada for 'maps/level01_cells.dae' took: 508 ms
ERROR: Couldn't create material 'particle_rockpiece.mat'
ERROR: Couldn't create material 'particle_rockpiece.mat'
ERROR: Couldn't find particle system file 'particle_imp_generic_hard.ps'
ERROR: Couldn't create material 'particle_metalpiece.mat'
ERROR: Couldn't create material 'particle_metalpiece.mat'
WARNING: Parent 'group3' couldn't be found! Failed to attach 'artefact01_pointLight1' to 'artefact01'.Attaching directly to mesh.
ERROR: Couldn't find particle system file 'particle_imp_generic_hard.ps'
ERROR: Couldn't create SoundEntity 'unbreak_impact_metal_soft_furniture_med.snt'
WARNING: Couldn't preload sound 'unbreak_impact_metal_soft_furniture_med'
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
ERROR: Couldn't find particle system file 'particle_imp_metal_special.ps'
ERROR: Couldn't find particle system file 'particle_imp_metal_special.ps'
WARNING: Couldn't find timer 'introevent1'
WARNING: Couldn't find timer 'introevent2'
WARNING: Couldn't find timer 'introevent3'
WARNING: Couldn't find timer 'introevent4'
WARNING: Couldn't find timer 'introevent5'
WARNING: Couldn't find timer 'introevent6'
WARNING: Couldn't find timer 'introevent1_1'
WARNING: Couldn't find timer 'introevent1_2'
WARNING: Couldn't find timer 'introevent1_3'
WARNING: Couldn't find timer 'introevent2_2'
WARNING: Couldn't find timer 'introevent2_3'
WARNING: Couldn't find timer 'introevent4_2'
WARNING: Couldn't find timer 'introevent4_3'
WARNING: Couldn't find timer 'introevent5_2'
WARNING: Couldn't find timer 'introevent5_3'
WARNING: Couldn't find timer 'introevent6_2'
Loading collada for 'maps/level03_messhall_entrance.dae' took: 166 ms
ERROR: Couldn't find particle system file 'particle_imp_generic_hard.ps'
WARNING: Texture 'lambert1-fx' was not found!
ERROR: Couldn't create material '.mat'
ERROR: Couldn't create material '' for object 'nocollide_noshadow_cord'
WARNING: Texture 'collider_mat-fx' was not found!
WARNING: Texture 'collider_mat-fx' was not found!
WARNING: Texture 'collider_mat-fx' was not found!
WARNING: Texture 'collider_mat-fx' was not found!
WARNING: Texture 'collider_mat-fx' was not found!
WARNING: Texture 'collider_mat-fx' was not found!
ERROR: Couldn't create SoundEntity 'unbreak_impact_metal_soft_furniture_med.snt'
WARNING: Couldn't preload sound 'unbreak_impact_metal_soft_furniture_med'
Loading map 'level03_messhall_entrance.dae' took: 989 ms


Apparently it has some trouble finding certain files.
I have it installed in the folder C:\Program Files\Penumbra Black Plague

EDIT:
I have updated the game, and the patch log contains nothing.