Menu loads, but the game doesn't

[Azelice]

Hi,
I had the same problem on Amnesia : the dark descent, but I waited A Machine For Pigs, thinking this one should work. But I've got exactly the same problem and I couldn't find any solution. I've read all the subjects and all the troubleshooting guides i could find and the game still doesn't load.
My drivers are all updated, i checked it several times. I also tried oldest version because of what I read on forums about AMD and OpenGL. I tried with the lowest resolution and graphics, and still nothing. I'm stuck on the loading screen when I want to start the game, but i'm able to create a profile.

My exploitation system is windows 8, 64 bits
It's a laptop Sony

I've got the game on steam, I verified the cache a lot of times, tried to uninstall it, etc.
I was to able to play The dark descent on an old computer which is dead now, I'm a really huge fan of this game and I was waiting for this one since the rumor of an Amnesia 2 was launched. That's why, with a poor english (I apologize for that), I'm here asking for your help, you're my last hope !
Thank you for your help !
Regards,
Azelice.