I was just playing my Carvin AC40 and the G string started buzzing. As I checked it closer it was buzzing at the first 3 frets and then I noticed that all the strings were doing that and that the G and D would not even play a note till I got to the third fret. I have never seen a bass react like that. It has been quite humid the last few days and cool. I stopped using the air conditioning about 4 days ago. Could this have anything to do with it?