I have one question and one question only concerning my new fretless bass. I recently made a purchase on a wonderfull new Cort Artisan B4 fretless, and I noticed only one thing wrong with it (I noticed this before the purchase, so it ain't my doing): the first "fret" notes on the G and D strings creates a rattle and a lack of sustain. It just RATTLES on the G# on G and D# on D. THIS IS NOT A SERIOUS PROBLEM, JUST A CURIOSITY. I bought the bass because it sounded great and looked great, and it still does. I just wanna know why it rattles there and how I can fix it (if I can). I can work around the problem regardless in my playing (6th "fret" of the D and A strings) by playing in a different position, I know. It's just no rattle, even if I don't worry about it, is not as good as no rattle. THANKS!