I am playing the PC version of Indigo Prophecy (a Singaporean copy), and I'm stuck at this mission. It's the one where you go through the corridors, and you have to keep Carla's breath steady using the left and right keys. The problem is that I can't figure out how to move left or right, since the left and right keys don't do that function during this sequence. So basically I'm just walking against walls all the time. Could somebody please tell me how to do this?