Thanks for the advice so far. I have just ordered the back to natural so hopefully that will help. i know i need to try and relax about it a little bit but there really is a noticable difference in colours in certain lights and so it is a bit concerning. I'll also try a more waxy hair product to see if this dulls it down a bit as the ones i'm currently using are more gel type products so I'll see what difference that makes. I've been given some advice by my stylist about colouring should i need to go to that stage but I'll hang on before doing anything too drastic just yet.