Chapter III - help!

[Guest]

I just started Part III. I have entered the building through the roof
after I shot the glass.
I am now stuck in front of an infrared mine tripping wall. I have tried
just about everything.
Can anytell me how to get by it? I have rolled, leaped and done it all.
But, I keep getting blown to itty bitty pieces.
Thanks guys.
Big Bipper

[Castor_Troy]

Shoot the trip-mine when you stand at those boxes beneath the roof-window. that should do it.