I'm stuck on the Penthouse level (with the helicopter). I'm on the roof beside the neon AXE sign. I then grab on to the electrical cable to get the other building. The walkthrough says "Jump up to it and ride it to the pole across the road." The problem is that I keep falling before I reach pole on the other side. Even if I don't press anything when I'm sliding down the cable, I just fall and plummet to my death. Is there a special key combo I should be doing. Any ideas?? 
