Despite my graphics card stated unsupportable. I played the game and reached chapter 17 Masks Off but my problem is after I take the injection and the Cephs breaks in I run up the staircase but the hidden door behind the bookshelf dosen't open up. I have tried to play back from the last check point but it didnt helped either. Please help any one. I saw from the walkthrough that only 2 or 3 chapter remains. I want to finish the game. PLease hhhhhhhheeeeeeeelllllllllllllpppppppppp.
How to overcome this bug?
my e mail "physics_abhishek@yahoo.co.in"