hi i am new to this website, I have an epiphone Faded SG and am gettin quite pissed with it, if i just tune it with the open strings it will be out of tune down the neck, if i tune at using the chords at the second fret (e,a,d,g....) it will be out of tune down the neck, if i tune it at the 5th fret it will be out of tune somewhere else, no maatter what method of tuning i use its always really out of tune somewhere on the neck, how do i fix this?