Amnesia stops working at the old archives

[astridjuh12]

hello, i recently started playing amnesia : the dark descent.
everything works fine untill i reach the old archives. there is this part where you can see a hole in the wall and when you walk to the wall and enter the door on your left you find a room with alot of rocks in it and a note on a desk. when i read it, daniel will start talking about being trapped and seeing a blue light. that's as far as the game goes. i can only press esc , other movements do not work. and i can still hear all the background noises

i'm playing on an Acer Aspire 5740 laptop
windows 7 64-bit
Intel® HD Graphics (core i5) videocard.

i really hope someone can help