I was not comfortable with the action of my bass.I have an adjustable bridge and I lowered that as low as I could and still wasn't happy.I took a small round file and filed each slot down some.My E,A, and D strings turned out great and plays perfect.The problem is the G string.I think I filed it down too low.I can visibly see it laying considerablly lower on the fingerboard than my other strings and I get a very annoyoing buzz and a bad resonance when I play notes on this string with some force.I can play gentler here but that is not my sound, so it is not good for me.I put piece of a pack of matches under the nut slot as a spacer but I still can't get rid of the buzz.My first question is what else, aside from the filing I did, could contribute to this buzz?Second, what can I do on my own to fix this problem without getting a new nut?I really can't afford that and I do not know of any luthiers in my area.I would greatly appreciate advice or any words of wisdom.