[Ubuntu] Crash on start (shaders?)

[Captaincook]

Hi all
Dual boot machine here, I wanted to install the game on both systems (Windows Vista & Ubuntu 10.04).
It works perfectly on Windows, so that's good, great, excellent. Love it.
But it crashes on Ubuntu.
First I had an issue with S3TC support; I enabled it with DRICONF, so that took care of that.
Now things go a little further but still crash early on... Here's the terminal output:

GL_VERSION: 2.1 Mesa 7.7.1
GL_VENDOR: Tungsten Graphics, Inc
GL_RENDERER: Mesa DRI Mobile Intel® GM45 Express Chipset GEM 20091221 2009Q4
GL_SHADING_LANGUAGE_VERSION: 1.20
GL_EXTENSIONS: GL_EXT_compiled_vertex_array GL_EXT_texture_compression_s3tc GL_EXT_texture_env_add GL_ARB_copy_buffer GL_ARB_depth_texture GL_ARB_depth_clamp GL_ARB_draw_buffers GL_ARB_draw_elements_base_vertex GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_framebuffer_object GL_ARB_half_float_pixel GL_ARB_map_buffer_range GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters GL_ARB_point_sprite GL_ARB_provoking_vertex GL_ARB_seamless_cube_map GL_ARB_shader_objects GL_ARB_shading_language_100 GL_ARB_shading_language_120 GL_ARB_shadow GL_ARB_sync GL_ARB_texture_border_clamp GL_ARB_texture_compression GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_ARB_texture_env_crossbar GL_ARB_texture_env_dot3 GL_ARB_texture_mirrored_repeat GL_ARB_texture_non_power_of_two GL_ARB_texture_rectangle GL_ARB_transpose_matrix GL_ARB_vertex_array_bgra GL_ARB_vertex_array_object GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_window_pos GL_EXT_abgr GL_EXT_bgra GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_logic_op GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_cull_vertex GL_EXT_copy_texture GL_EXT_draw_range_elements GL_EXT_framebuffer_blit GL_EXT_framebuffer_object GL_EXT_fog_coord GL_EXT_gpu_program_parameters GL_EXT_multi_draw_arrays GL_EXT_packed_depth_stencil GL_EXT_packed_pixels GL_EXT_pixel_buffer_object GL_EXT_point_parameters GL_EXT_polygon_offset GL_EXT_provoking_vertex GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_specular_color GL_EXT_shadow_funcs GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_subtexture GL_EXT_texture GL_EXT_texture3D GL_EXT_texture_cube_map GL_EXT_texture_edge_clamp GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_texture_filter_anisotropic GL_EXT_texture_lod_bias GL_EXT_texture_object GL_EXT_texture_rectangle GL_EXT_texture_sRGB GL_EXT_texture_swizzle GL_EXT_vertex_array GL_EXT_vertex_array_bgra GL_3DFX_texture_compression_FXT1 GL_APPLE_client_storage GL_APPLE_packed_pixels GL_APPLE_vertex_array_object GL_ATI_blend_equation_separate GL_ATI_envmap_bumpmap GL_ATI_texture_env_combine3 GL_ATI_separate_stencil GL_IBM_multimode_draw_arrays GL_IBM_rasterpos_clip GL_IBM_texture_mirrored_repeat GL_INGR_blend_func_separate GL_MESA_pack_invert GL_MESA_texture_signed_rgba GL_MESA_ycbcr_texture GL_MESA_window_pos GL_NV_blend_square GL_NV_depth_clamp GL_NV_light_max_exponent GL_NV_packed_depth_stencil GL_NV_texture_env_combine4 GL_NV_texture_rectangle GL_NV_texgen_reflection GL_NV_vertex_program GL_NV_vertex_program1_1 GL_OES_read_format GL_SGIS_generate_mipmap GL_SGIS_texture_border_clamp GL_SGIS_texture_edge_clamp GL_SGIS_texture_lod GL_SUN_multi_draw_arrays
GL_STENCIL_BITS: 8
GL_MAX_VERTEX_UNIFORM_COMPONENTS: 4096
GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT: 16.000000
Compiling shader shaders/gl/PostProcess.vsh
Compiling shader shaders/gl/PostProcess.fsh
Compiling shader shaders/gl/ImmediateMode.vsh
Compiling shader shaders/gl/ImmediateMode.fsh
Compiling shader shaders/gl/ImmediateModeTex.vsh
Compiling shader shaders/gl/ImmediateModeTex.fsh
Compiling shader shaders/gl/ParticleSystem.vsh
Compiling shader shaders/gl/ParticleSystem.fsh
Compiling shader shaders/gl/NotebookRenderer.vsh
Grimrock.bin.x86_64: shader/slang/slang_codegen.c:4168: _slang_gen_variable: Assertion `var->declared' failed.
Aborted

Any idea what the problem may be?
Thanks in advance and cheers!

[Dr.Disaster]

GL_SHADING_LANGUAGE_VERSION: 1.20

I guess this is the cause for the crash or to be more precise: the fail of the shader compilation.

Compiling shader shaders/gl/PostProcess.vsh
Compiling shader shaders/gl/PostProcess.fsh
Compiling shader shaders/gl/ImmediateMode.vsh
Compiling shader shaders/gl/ImmediateMode.fsh
Compiling shader shaders/gl/ImmediateModeTex.vsh
Compiling shader shaders/gl/ImmediateModeTex.fsh
Compiling shader shaders/gl/ParticleSystem.vsh
Compiling shader shaders/gl/ParticleSystem.fsh
Compiling shader shaders/gl/NotebookRenderer.vsh
Grimrock.bin.x86_64: shader/slang/slang_codegen.c:4168: _slang_gen_variable: Assertion `var->declared' failed.
Aborted

AFAIR LoG requires Shader 3 to run. Try a more recent driver version than 2009Q4.

[Captaincook]

Thanks for your reply.
Wow. Does this mean my driver actually dates back to the 4th quarter of 2009?
I thought these were part of the standard updates, but... I guess that the fact that I'm using early 2010 Ubuntu is the source of the problem, right?
Sorry, could you give me some pointers about how I can update these drivers manually?