Use Hardware Audio Option Resets itself

[mattvintak]

Hi there. Pretty much what the title says: the Hardware Audio Option resets itself in Penumbra Overture. I'd like to use it, because I have a Corsaid Void 7.1 Surround Headphones, and the game it's surely amazing in 5.1 surround sound. But, every time I turn on the Use hardware audio option, it says to restart the game, and after I do so, the game resets the option. A while ago, when I bought the game, I had this problem, and resolved by googling, but I couldn't find the solution this time. I'm pretty sure it's just editing the config file, I just don't know how. Can anyone think of anything? I googled for hours lots of times, but can't find the solution anywhere.