I had a problem with my game where there was no audio, but there was a thread I found a while ago that fixed it by setting your headphones frequency to 44100 hz, which restored the sound, but there's still one more problem. Whenever I change pages in a note, the sound would mute, and I would have to restart the game to get it working again. This isn't really a deal breaker, but it basically means if I want to read a note in a mission (usually with useful information about loot spots in the level), I have to quit the game afterwards or I won't be able to play the game. Really kills the mood of the game for me, so I've been scouring the internet for solutions. I tried both the official and unofficial installers, I tried downloading the game from ModDB, but still nothing. I did however, find an old 2.08 build of the game on ModDB. I figured at this point my computer just doesn't like the 2.09 version so I would download that version and hopefully it would work. And something interesting happened. I loaded up the training mission and read the book to check if it was working, and this awful compressed (very loud) page turn sound effect played that nearly blew my eardrums out. So the sound was working at least, but it's almost worse now that my ears are getting blasted every time I read a note! My theory is that this sound effect was (rightfully) taken out of the game, and some line of code still refers to it playing, but I know nothing about coding so I wouldn't know how to fix it. If anyone finds a solution please respond ASAP. I've played all the Thief games and Dark Mod is the only reason I keep living.