Hi, i am from Brazil, so i searched for the translation to my language, i downloaded this one 
http://frictionalgames.com/forum/showthread.php?tid=317, i installed it, then i started the game, no problems, i set the options of set the language, then i restarted the game, when i started the game again, the blackbox program has started with that errors msg about the game, log:
-------- THE HPL ENGINE LOG ------------
Creating Engine Modules
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 Creating graphics module
 Creating system module
 Creating resource module
 Creating input module
 Creating sound module
 Creating physics module
 Creating ai module
 Creating scene module
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Initializing Resources Module
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 Creating resource managers
 Misc Creation
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Initializing Graphics Module
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 Init low level graphics
 Setting video mode: 800 x 600 - 32 bpp
 Init Glee...OK
 Setting up OpenGL
  Max texture image units: 16
  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: 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
    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... Failed opening hardware device, using software
  Device name: Generic Software
  OpenAL Version Supported: 1.1
  Number of channels: 32
--------------------------------------------------------
Initializing Game Module
--------------------------------------------------------
 Adding engine updates
 Initializing script functions
--------------------------------------------------------
User Initialization
--------------------------------------------------------
ERROR: Couldn't load language file 'Portuguese_br.lang'
Trying to load vertex program!
Success!
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'cour.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'cour.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'font_computer.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'font_computer.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'font_computer.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't create font 'verdana.fnt'
ERROR: Couldn't texture 'title_logo.jpg'
ERROR: Couldn't texture 'title_ep1.jpg'
--------------------------------------------------------
Game Running
--------------------------------------------------------
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
ERROR: Couldn't create font 'font_menu_small.fnt'
PS, the problem happened when i installed the translation, i tried to delete the translation and not worked, then i unistalled the game and installed again, not worked, whats going on?
Sorry about the bad english