Black screen problem - all solutions don't work.

[AMX]

when I play amnesia, the screen suddenly goes completely dark. It comes back when I push the Esc button, but it happens again and again.

http://www.frictionalgames.com/forum/thread-3754.html


I followed all these methods in Problem C, but nothing works.

7. I bought it from steam on 2012 halloween. So it's alreday newest version.

6. My graphic card is NVIDIA GeFroce GTX 550 ti.

5. I do the same as it discribes, but nothing works.

4. same as 5.

3. same as 5.

1. As I mentiones in 6, my graphic card is NVIDIA GeForce GTX 550 ti, not Intel's card.

Is there another solution? or Do I have to update my graphics card drivers although mine is NVIDIA card?