Last Monday 20 December 2004 13:12, geekery(a)jamesfenn.co.uk was like:
  Okay, sorry for this just had to bite as most
guitarists are taught dodgy
 tuning methods... This one is for equal temperament, which you have to use
 because you have frets in a fixed position. Bear in mind that the
 intonation on your guitar has to be in for this to work (check the harmonic
 at the 12th fret with the fretted note there, they should be exactly the
 same) :
 1 get your A string in tune from a piano, pitchfork, whatever... A is a
 good oneto start with because the peg is a little bit protected and it is
 the standard tuning note.
 2 tune the low E by comparing the 5th fret on the E with the open A
 3 tune the D by comparing the 12th fret harmonic on the A with the 7th fret
 on the D string
 4 tune the G by comparing the 12th fret harmonic on the A with the the 2nd
 fret on the G string
 5 tune the B by comparing the 5th fret harmonic on the A with the 10th fret
 on the B string
 6 tune the top E by comparing the 5th fret harmonic on the A with the 5th
 fret on the top E string
 The rationale for all this is first that you are tuning everything off of
 the same string so you don't get compound error from tuning every string
 from the pitch of the last one tuned (A from 5th on E, D from 5th on A,
 etc) and secondly the harmonics which produce octaves should be perfectly
 in tune whereas the 5ths are out in terms of equal temperament.
 The only problem is getting to the pegs with your right hand while fretting
 with your left quick enough before the harmonics die out... 
Thanks, I'll try that :-)
tim hall
http://glastonburymusic.org.uk