Black screen after game start

[Absurd]

First off, sorry to make another of these threads, but I've read all the ones out there right now and none are helping me. Basically everything is fine up to the point of actually trying to play the game. Screen is completely black except for I think a torch that I must have ran into since I can still move around and hear water. The icon of it shows up and when I click it says No Tinderboxes. Also when I press M the text will show up saying what to do, but nothing else is visible.

I use a W7 desktop and my graphics card is a Sapphire Xtreme Radeon HD5830. It's completely updated and hasn't had any problems with anything else. When I check dxdiag it says my graphics card is Intel HD graphics family, but I've read that normal for it to say that while my actual card still runs everything, so I'm not sure. Any help is appreciated.