I have a Hitachi HDTV Ultravision. The sound of music on movies and shows is louder than the show dialoge and is very annolyingly loud. We turn down the commercials and then have to turn it back up when he show returns. Can u help me adjust this to avoid this problem?

sounds like one of the buttons is stuck down on the control panel this will cause the other buttons to be inoperative

Since the model indicated (55vg825) is a DLP which uses a lamp--it does sound like you have a damaged "optical light engine" which is a expensive repair---confirm model number to me and or Contact Hitachi about a possible recall or repair on that model.

go in your menu an turn of the surround sound it kills the loud music in the background

Convergence has failed. $250 - 300 let a trained tech. do it for you.

Sounds like the DLP lamp failed. You can decipher the Hitachi flashing red light. That should help to be sure.
The DLP lamp replacement is fairly straightforward and can be done with minimal tools

Hitachi has had problems with their light engines. Very expensive. Contact Hitachi as they may give you consideration even if this is out of warranty.

On your remote there should be a button that says "Aspect" or "Pic Size". Press thisuntil the video fills the screen. If you do not have the remote of don't have the original remote, this setting can be found by preesing the menu button on the tv, go down to video settings and it should be listed under "Aspect Ratio", change it untill the video fills the screen.

volume control has been complaint may be...

Thank you, everyone! I thought maybe I was losing my mind. I can hardly watch a lot of the TV shows anymore due to the inappropriate use of music -- either it's too loud or there's just too darned much of it. Come on, TV producers! You are supposed to get better with time, not worse! Thank goodness I'm not alone.

Check the audio settings. You might need to reduce the surround sound effect or increase the Center (dialogue)