I'm in the mountain (Karzai?) with all of the glowing squares in the walls, and the various switches that send water flooding in to different rooms.
I've been wandering around this section of the game for forever, and can't find whatever it is I'm supposed to find.
Is it possible to trigger the water flows in the wrong order, and consequently make it impossible to get whatever I need to get or do whatever I need to do in order to progress? Or, is it possible to undo whatever I did, so that I can go further?