[Windows App Store Game] Audio Not Playing

I've been working on a game for the windows 8 app store and the audio works fine in the editor and web player. I've built out the project as an XAML c# solution and saved out the final package from visual studio and now my sounds don't play apart from one sound.

The game is meant to have background music playing and a sound play when the player picks up an object or puts it down. Sound only plays when you pick up an object, but not for background music or for putting down the object.

If anybody has any solutions or is also experiencing this issue then please let me know

 

Bump.. nobody? :s