Okay, I posted about this a while back, I got a new bass, there's a very prevalent overtone on the open d string. It was suggested that the nut grooves had been widened, and I checked, and lo and behold, the nut HAD been modified to fit B E A D tuning. So I got a new nut, and had it put in, bass set up, all that jazz. Just picked it up, and the overtone is STILL there. Just on the open D, no other strings. I don't think that my Tech is at fault here, because it's the same problem... Could there be something wrong with the bridge that would cause this? I'm really stumped.