I recently purchased HTD Level II's and an Onkyo SR500. I I really like how it sounds for a most of my movies, however there are quite a few where the dialog sounds flat and/or rough. The biggest offneders are Harry Potter (especially Hagrid), Face/Off, and The Mask of Zorro. Sound effects and music sound fine. I was wondering if there is something I might be overlooking that would cause this. Thanks for any assistence.