Just received my first PRS Custom 24 (new). Everything is perfect except that the G string gives some "noise". All other strings sound very clean. But when the G string is played, even a single note give some hoarse sound. The noise is more noticeable around 12 frets. I don't know whether hoarse is a correct word to describe the sound. But when comparing the sound from other strings' clean sound, it's hoarse. I unplug from the amp and play it acoustically, I didn't hear any fret buzz, at least not noticeable. I haven't met this kind of problem before, not even on my cheap guitars. Any idea what could be the problem? Is it just a bad string?