Storage Explosives glitch (video included)

[CAustin]

*spoilers below*

I'm at the part of the game where I need to fill the science cup (I can't remember exactly what the game calls it) with the two explosive substances in the storage room. At first I thought I was doing the wrong thing, but I've already looked up instructions on gamefaqs and even videos on youtube out of frustration, and it appears the game is just glitching out on me. When I try "using" the science thing on either stream of liquid, the game simply gives me a message stating that the item cannot be used this way. I've uploaded a video showing exactly what's happening:

http://www.youtube.com/watch?v=K_Q9Pm8v5AQ

For the record, the video conversion software I used turned the gamma way up during the encoding process. When I play the game it's much darker, I swear!