I have been lurking on this forum for a while and thought I would register and join since I just picked up my first Gretsch (used 2007 g5120, black), which is my only electric guitar. I have been playing acoustic and resonator guitars for a loooong time, but have only played around with electrics from time to time. This guitar is in like new condition. In fact I would have assumed it was new if it did not say used on the price tag, except for the fact that there was no pickguard on it. It has no fret wear at all, no scratches, not even superficial ones, etc. The neck is straight, fret work is great, and it sounds great. But...it started buzzing while playing it yesterday and after while I realized that the intonation screw on the G string is quite loose and making a rattling sound. It is not loose where it goes into the saddle, but rather where the top of the screw and the attached washer are. Just to make sure the loose screw was the culprit, I stuck a tiny piece of cloth in the space where the saddle and tuning screw is to keep anything from moving, and the buzz went away. I assume/hope there is a better way to address this problem and, if there is, perhaps one or more of the veteran Gretsch owners can give me some suggestions? I apologize if I should have just introduced myself here and gone to another section of the forum to discuss this technical issue, but I thought I would bring it up since it is what's on my mind as I type my first, introductory post here. Thanks in advance for your help with the and eveything else I have learned by reading posts on the forum.