I can't see the game... It's all black !!!

[ximix]

Hi all, before starting sorry for my bad english and if a post like this il already be posted on the forum...
I already read the guides for the troubleshooting in this and another forums ( General troubleshooting guide: http://www.frictionalgames.com/forum/thread-3754.html , Graphics card troubleshooting guide: http://www.frictionalgames.com/forum/thread-11183.html , Integrated / laptop graphics chipsets troubleshooting guide: http://www.frictionalgames.com/forum/thread-9942.html ).
But I can't resolve my problem...
As in that post (http://www.frictionalgames.com/forum/thread-15730.html) i can't see nothing when I run the game... I only hear the voices... And I only see the white pointer on a black background... And I don't see no texture...

I buy the game with a bundle... and I play it on STEAM...

My notebook is a HP g6-1020sl and my graphic card is the integrated one... an AMD Mobility Radeon HD 6470M with 512 MB of dedicated DDR3 memory.
And i have Windows 7 Home Edition 64-bit...

As you required I attach the file "hpl" found in game's folder...

  hpl.log (Size: 15.11 KB / Downloads: 111)

So please help me... I already tried to update the driver but I've already the latest version and I do not know what to do...

Thanks for the help!!!