I was using the newest version of TDOANE, and for some reason everytime i duel or want to do something to my deck the settings are on default and music plays so i have to keep turning it off. i got into the habit of turning down my volume until i get the chance to turn off the settings in a duel. then suddenly no sound at all. i clicked the settings on and off, still nothing. its the same with the deck construction screen. would be great if someone could help me with this.

Check your Volume Mixer. Otherwise go into the settings when you're dueling or deck constructing.