Title pretty much says it all. It's not a huge deal, because it doesn't pick up through an amp, but it's still irritating. It's also only on the G-string.

Any ideas on what it is and how to mend it?
Last edited by Flying Couch at Nov 10, 2012,
Take a close look and make sure the saddle is seated firmly onto the bridge. Any gap (casued by bent screw or just poor installation of saddle) will cause buzzing.
Moving on.....