Just for info for anyone else: Truss rod: hold the string on the 1st and 12th fret, the neck should be slightly concave. If it is, keep your cash in your wallet, if it isn't, you're probably better off getting it sorted by a pro. Intonation: Play the string open and tune it. Play the 12th fret harmonic. If it's sharp, the string needs to be longer and vice versa. It's a good idea to slacken the string before adjusting it's length or you may round the head of the adjuster.