Hey guys. I just bought a used bass and am beginning to notice some buzzing in the neck. Since this is my first fretless bass, I was surprised to hear what I considered the classic "fret buzz" sound on my fretless. The neck is pretty fine in either direction, sounds smooth on runs in either direction, but there's an awful bottoming out that happens around the seventh fret of both the E and A strings. (also a slight reoccurrence above the fifth fret of the G string). Here is a link to a video my wife was kind enough to shoot for me this evening: http://www.twistedtomorrow.com/fretlessbuzz01.mp4 As you can hear, the bottoming out is so severe to render the bass practically unplayable in this condition. Bass information: Carvin AC40F, neck-through. Standard truss rod in headstock. Is this a normal thing? Is it just a slight truss rod adjustment away from an easy fix, or do I have to take this to a shop? Thanks!