Hi there, In the first place I wish to thank the author of the "European Volume Solution" for the NW-HD's Sony. I tried and it was a success (although I would like to have even more volume, just for some musics....) But the main question here is about the other options of "Service Menu". There is an option CLOCK which I selected and then it gaves me an OK answer. I hope I did not mess with anything serious but I would love to know what does that means ? Also it would be great to know is there is any other interesting options to deal with (perhaps the copy of the Service Menu Manual...... ) Thanks for all your help and best regards to all of you.