I cant hear sound from a dvd player,

This is gong to sound lame because I don't know the answer but I can point you in the right direction. The same thing happened when I got my new TV, but that was years ago. If you have you TV set to broadcast in surround sound, it sends the talking to a "fifth" speaker in the middle of the room. The background sounds, like thunder and gunshots, are sent to the speakers that project out into the room, so it sounds like the background sound is all around you. HOWEVER if you do not have a surround-sound speaker system, there is no fifth speaker for the voices to go to. Now, i don't remember what the settings are called, but I'll bet if you call the store where you got your tv they can tell you.