The bridge on my Cort 5 string bass has been buzzing on certain frets, the 7th fret of my G string (no jokes please ), the second of my E string, and a few other, its definately coming from the bridge, but I can't pinpoint where exactly, I'm thinking its something wrong with the saddle. The last time I changed strings it got even worse. Is it time for a new bridge? If so how much do they go for, and could you reccommend a good one.. Thanks.