Hi, so I
Spoiler
have the crowbar, and when I go in the dark world in the room with the tables and chairs, and I write "use crowbar to remove nails"
the game crashes.
Here is a screenshot:
(http://img42.imageshack.us/img42/4563/trilbynotes.png)
Try
Spoiler
use crowbar on boards
If I remember it correctly, it should do the trick.