hey guys,

ive just tried to intonate my guitar and i cant get the notes to stay perfect at the 12th fret, but the open strings tune perfectly.

its a dean ML with string-thru tune o matic bridge with 10-52 gauge strings in drop C and locking spezels.

can anyone help me?

thanx guys
no, i know how to move the saddles, im asking why it wont change when i move the saddles.
It should do, you need to retune the guitar each time you adjust a saddle...

Also, tune to the 12th fret harmonic and then compare this to the 12th fret as this is the exact pitch you are intonating too