bonjour, je pense avoir trouvé d'ou vien mon problème, grace a un forum anglais qui disait de regarder le bloc note "log.txt" vérifier si il n'y as pas d'erreur, mais il y a des pages et des pages d'erreur en voici un extrait:
Date: 11/24/12
Time: 20:27:37
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Build 232
Steam initialized
Render Device: NVIDIA GeForce GT 545 (9.18.13.697)
Error: Direct3DDevice::Unable to create default shader
Error: Direct3DDevice::Unable to create screen shader
Error: Direct3DDevice::Unable to create default shader
Error: Direct3DDevice::Unable to create screen shader
Sound Device: Speakers / Headphones (IDT High Definition Audio CODEC) stereo
Record Device: Line In (IDT High Definition Audio CODEC)
Loading config://ConsoleBindings.json
Loading config://FavoriteServers.json
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_01.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_12.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_05.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_02_trim_a.materi
al'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_06.material'
Error: Couldn't load shader 'shaders/Level_alpha.surface_shader' for material 'materials/refinery/refinery_grate_03.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_08.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_trim_08.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/dev/dev_floor_grid.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_trim_12.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_tram_trim_03.material
'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_04.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_trim_04_b.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_03.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_trim_06.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_tram_wall_01.material
'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_09_c.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/dev/dev_1024x1024.material'
Error: Couldn't load shader 'shaders/Level_alpha.surface_shader' for material 'materials/refinery/refinery_grate_04.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_floor_trim_01.materia
l'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_floor_mesh_02.materia
l'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_trim_11.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_ceiling_04.material'
Error: Couldn't load shader 'shaders/Level_emissive.surface_shader' for material 'materials/refinery/refinery_wall_02.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_mining_floor_01.mater
ial'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_09_b.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_trim_06b.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_floor_trim_02.materia
l'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_trim_14.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_trim_17.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_trim_02.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_20_trim_03.mater
ial'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_floor_06.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_09.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_11_b_2.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_trim_13.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_01_trim_a.materi
al'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_10.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_11_c.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_tram_trim_01.material
'
Error: Couldn't load shader 'shaders/Level_alpha.surface_shader' for material 'materials/refinery/refinery_grate_01.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_trim_15.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_floor_05.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_14.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_floor_03.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wall_11.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_wallmods_13_tile_02.m
aterial'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_steps_01.material'
Error: Couldn't load shader 'shaders/Level.surface_shader' for material 'materials/refinery/refinery_trim_09.material'
Ce n'est que le début...
j'ai retélécharger le jeu 6 fois mais rien n'y fait, avec cette information pouvez-vous m'aider.