I recently downloaded a game (superfighters deluxe) that uses the xnb file format for sound. When I start the game, no sound plays; only the music which is in a mp3 format plays. I made sure there was no problem with .NET framework (I repaired it many times using the tool from microsoft) and reinstalled XNA framework. I made sure the problem wasn’t within the game as I tried another game (Terraria, also as you know uses .xnb files),which also produced no sound, and tried the game on another PC and it worked. Please help, and I am sorry for any disturbance.