<font color='#000000'>Did you go into the receiver's setup menus, and set the levels for the speakers in the digital output? The ideal way is with an spl meter from Radio Shack and a calibrating disc, such as Sound & Vision's HT setup disc or DVE (Digital Video Essentials) disc. Of course you can go in and adjust by ear. You may need to break out the manual, take your time, and go step by step for this process. This is setting the volume level for each speaker. This will let you set the center speaker's volume a bit higher, so the background music don't drown out the voices, in the movie. I'm taking it for granted that your receiver is doing the processing. If the dvd player is doing the processing, go into the player's setup menus, and do the same thing.
Good luck! Keep us posted on your progress............</font>