I have played this game before. Got completely through it with no problems. Playing again! Now I am in the brothel with Knobby. I have been "magically" placed inside him, after I ask if he. I see what Knobby sees. I get to the part where I can see through the grating on the floor (about 3 meters from the end of the vent). NO MATTER what I do I can not proceed to where I would be able to fall through the vent to the power source - I have not been able to find any Cheat codes for Clipping or I would have used that...HELP PLEASE!