zeffyr: I'm not looking for the walkthrough, but a little hint: I'm down the harbour and unlocked the passage to the industrial area, but I managed to restore only one projector out of four in the harbour. Are all the clues for projectors already located down the harbour, or will they show later in the game's next areas and I will go back to the harbour to restore those projectors?

Charon121: That one was actually obvious – after all, blackboards have only one purpose. :) The puzzle in the pub had me stuck for a long time, until I realised I could write on the poster. It's not immediately apparent because IIRC there's no writing cursor, so try clicking on various documents to see whether you can write something on a line or in a blank space.

Charon121: You mean Bell? :) Was it the door (there are a few sketches with a solution for that), or the one that teaches you it's as important to watch as it is to listen?