ok,.. am facing a problem,... wen i strumm or pick on my guitar's first 2 strings. (The lower most) I get a strong buzzing sound. And wen i touch my pick gaurd, the buzz stops, also i can feel the pick gaurd vibrating at the same time. So,... is it the pick guard which is making a problem?? Shd I thighten the screws on the pick gaurd as much as i can??? Any help would be appreciated!