Hello. I recently set up a Dolby digital 5.1 surround home theater system. I am getting frustrated by how much time I have to spend tweaking my receiver (a brand new Yamaha HTR-5740) when I am watching movies vs. watching high def. television vs. regular non-high def. television. I have read the receiver's user manual from front to back and have spent at least a month using the system to get a feel for the difference settings. The average person probably would not notice the subtleties that concern me, but as you know, if you spend a lot of money on a top-of-the-line system you expect it to work with minimum effort and maximum consistency. It just seems for all these different media formats there is no one perfect setting. What is your experience? For example, it is normal that I should have to change the volume on the center channel almost 10db when watching a DVD (which I assume they are all in 5.1 or 6.1 Dolby) vs. watching 5.1 HDTV like HBO? My last question is, sometimes when a DVD is playing and the volume is just right, all of the sudden during an action scene or something the volume will get REALLY loud and so I constantly have to have my finger on the volume control so I don't annoy my wife or the neighbors (I live in a townhouse) with the extreme volume and sub-woofer responses. Is this normal? I mean, should I have to adjust the volume many times throughout a movie in order to keep the peace? I have tried using night mode on the receiver, which is supposed to subdue the volume on large action scenes yet amplify voices, but the action scenes still turn out too loud. Im just looking for consistency in my home theater experience, and I think I have top of the line equipment and a knack for understand how things are supposed to work, but I am frustrated after a month of constant tweaking. Thanks in advance for any feedback and personal experiences you can provide.