Overture freezes during play on Ubuntu 9.04 (64 bit)

[danny]

When I run Overture on Ubuntu 9.04 (64 bit), it starts off fine without any problem. After playing for a few minutes, the game freezes and freezes the OS too. I noticed that this mostly happens when I use a tool like hammer or steel rod and swing it or move the tool. My video card is nVidia GeForce 8600 M GS (rev1) and here's the hpl.log. Any help will be greatly appreciated.

Danny

Check serial!
-------- 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: 1024 x 768 - 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: 'ShadowExtrude_vp.cg' using profile: 'gp4vp'
CG: 'ShadowExtrude_fp.cg' using profile: 'gp4fp'
Diffuse Vertex
CG: 'Diffuse_Color_vp.cg' using profile: 'gp4vp'
Diffuse Fragment
CG: 'Diffuse_Color_fp.cg' using profile: 'gp4fp'
Fog
CG: 'Fog_Solid_vp.cg' using profile: 'gp4vp'
CG: 'Fog_Solid_fp.cg' using profile: 'gp4fp'
Creating fog textures: Solid Additive Alpha
CG: 'refract_vp.cg' using profile: 'gp4vp'
CG: 'refract_fp.cg' using profile: 'gp4fp'
CG: 'refract_special_fp.cg' using profile: 'gp4fp'
init sky box
Renderer3D created
Creating screen buffers size 1024.000000 : 768.000000
Creating programs
CG: 'PostEffect_Blur_vp.cg' using profile: 'gp4vp'
CG: 'PostEffect_Blur_Rect_fp.cg' using profile: 'gp4fp'
CG: 'PostEffect_Blur_2D_fp.cg' using profile: 'gp4fp'
CG: 'PostEffect_Bloom_vp.cg' using profile: 'gp4vp'
CG: 'PostEffect_Bloom_fp.cg' using profile: 'gp4fp'
CG: 'PostEffect_Motion_vp.cg' using profile: 'gp4vp'
CG: 'PostEffect_Motion_fp.cg' using profile: 'gp4fp'
CG: 'PostEffect_DoF_vp.cg' using profile: 'gp4vp'
CG: 'PostEffect_DoF_fp.cg' using profile: 'gp4fp'
RendererPostEffects created
Adding engine materials
--------------------------------------------------------

Initializing Sound Module
--------------------------------------------------------
Initializing OpenAL.
Trying to open audio device... Success!
Device name: ALSA Software on default
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: 2553 $
Date $Date: 2008-04-09 23:06:19 -0400 (Wed, 09 Apr 2008) $
Checking Supported Profiles
Profile CG_PROFILE_VP20 is supported
Profile CG_PROFILE_FP20 is supported
Profile CG_PROFILE_VP30 is supported
Profile CG_PROFILE_FP30 is supported
Profile CG_PROFILE_VP40 is supported
Profile CG_PROFILE_FP40 is supported
Profile CG_PROFILE_ARBVP1 is supported
Profile CG_PROFILE_ARBFP1 is supported
Profile CG_PROFILE_GLSLV is supported
Profile CG_PROFILE_GLSLF is supported
Profile CG_PROFILE_GLSLC is supported
Trying to load vertex program!
CG: 'Test' using profile: 'gp4vp'
Success!
CG: 'DiffuseSpec_Light_vp.cg' using profile: 'gp4vp'
CG: 'DiffuseSpec_Light_Spot_vp.cg' using profile: 'gp4vp'
CG: 'BumpSpec_Light_fp.cg' using profile: 'gp4fp'
CG: 'BumpSpec_Light_Spot_fp.cg' using profile: 'gp4fp'
CG: 'Ambient_Color_fp.cg' using profile: 'gp4fp'
--------------------------------------------------------

Game Running
--------------------------------------------------------
WARNING: Serialize class '' not found!
WARNING: Serialize class '' not found!
WARNING: Serialize class '' not found!
WARNING: Serialize class '' not found!
WARNING: Serialize class '' not found!
Loading collada for 'maps/level01_02_mine_entrance.dae' took: 528 ms
CG: 'BumpColorSpec_Light_fp.cg' using profile: 'gp4fp'
CG: 'BumpColorSpec_Light_Spot_fp.cg' using profile: 'gp4fp'
CG: 'Fog_Trans_vp.cg' using profile: 'gp4vp'
CG: 'Fog_Trans_Alpha_fp.cg' using profile: 'gp4fp'
CG: 'Diffuse_Light_vp.cg' using profile: 'gp4vp'
CG: 'Diffuse_Light_Spot_vp.cg' using profile: 'gp4vp'
CG: 'Bump_Light_fp.cg' using profile: 'gp4fp'
CG: 'Bump_Light_Spot_fp.cg' using profile: 'gp4fp'
CG: 'Diffuse_Light_fp.cg' using profile: 'gp4fp'
CG: 'Diffuse_Light_Spot_fp.cg' using profile: 'gp4fp'
CG: 'Fog_Trans_Mod_fp.cg' using profile: 'gp4fp'
ERROR: Couldn't find particle system file 'particle_dust.ps'
ERROR: Couldn't create particle system 'sust01' of type 'particle_dust'
ERROR: Couldn't find particle system file 'dust_sust01.ps'
ERROR: Couldn't create particle system 'particle' of type 'dust_sust01'
ERROR: Couldn't load particle system 'particle' with type 'dust_sust01'