QUOTE(violin-ann @ Aug 8 2006, 04:51 PM)

What about a buzzing on a brand new violin? But it got a little better after two week's of playing? Although a faint trace is still there?
Could just need playing in, or it could be something to do with the tailpiece or a fine adjusters (if you have them). Without wanting to sound rude, is it a commercially made instrument, or an individually hand-made instrument? Anything put together in a large multi-personnel worskshop will possibly be unplayed before being shipped out for sale, so it is unlikely they'd be aware of any issues such as rattling or buzzing.
The buzz you describe may just be a case of the instrument settling down, but if it continues or begins to get worse again, then I would advise taking it back to where you purchased it requesting that a luthier give the violin a thorough check.
I had a cello once that had a buzz when playing the C string. I changed the string, a luthier changed the string and in the end they even took it in to check all the seams. Nothing was loose and nothing was coming apart, but the open C string continued to buzz. It was a quirk that I never sorted out, but, while it was audible to me, anyone listening never seemed to notice it. So, if you can put up with the occasional buzz and the instrument is given a clean bill of health from a luthier, then it's often best to leave well alone.