Thanks in advance for your fast answer.
And thanks for info about carbonite, was just wondering if I tought to jave followed instructions but in fact didn't.. but with your info I know I did correct
About the interface, only changes I did are just ones you suggested me on previous posts... only things I did is to set addons differently for each character (I have disabled some character-related addons such pallypower and similar or disabled some addons that i don't use on alts). Is it possible that maybe this has made some changes on scaling? anyway I'll screenshot all my characters and will control scaling with accuracy.
Thanks again for help you give to us all