ah ti presico che non ho impostato nessun font.
ti copio anche il preambolo:
`\documentclass[a4paper,11pt,headinclude,linedheaders,eulerchapternumbers,subfig,openright]{scrbook}
%\documentclass[a4paper,11pt,subfig,subfig,openright]{book}
\usepackage[italian]{babel}
\usepackage[latin1]{inputenc}
\usepackage[footnote,smaller]{acronym}
\usepackage[font=small]{caption}
\usepackage{natbib}
\usepackage{classicthesis-ldpkg}
\usepackage{classicthesis}
\usepackage{amsmath,amsfonts,amssymb}
\usepackage{graphicx}
\usepackage{booktabs}
\usepackage{rotating}
\usepackage{hyperref}
\usepackage[italian]{varioref}
\usepackage{caption} %Per le didascalie
\usepackage[load=prefix,alsoload=accepted,alsoload=named,alsoload=binary,alsoload=abbr]{siunitx} %per le unità di misura
\usepackage{tabularx}
\usepackage[onehalfspacing]{setspace} %per l'interlinea
\usepackage[autolanguage ]{numprint} %per scrivere bene i numeri
\usepackage[]{frontespizio} %Per il frontespizio
%%% Questi tre per i capilettera %%%%
\usepackage{type1ec}
\usepackage[T1]{fontenc}
\usepackage{lettrine}
\usepackage{epigraph}
\usepackage{color}
%\usepackage{subfig}
\areaset[30mm]{312pt}{699pt}
%%%%%%%%%Fancy per le testatine %%%%%%%%%%%
%\usepackage{fancyhdr}
%\pagestyle{fancy}
%\renewcommand{\chaptermark}[1]{\markboth{#1}{}}
%\renewcommand{\sectionmark}[1]{\markright{\thesection\ #1}}
%\fancyhf{}
%\fancyhead[LE,RO]{\bfseries\thepage}
%\fancyhead[LO]{\bfseries\rightmark}
%\fancyhead[RE]{\bfseries\leftmark}
%\renewcommand{\headrulewidth}{0.5pt}
%\renewcommand{\footrulewidth}{0pt}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%% Epigrafe %%%%%%%%%%%%%%
\newcommand{\myepigraph}[2]{%
\setlength{\epigraphwidth}{.60\textwidth}
\epigraph{\color{gray}\itshape#1}{\color{gray}#2}}
%%%% SIunitx nuova voce per Pacchetto
\newunit[]{\packet}{p}
%%%%% Varioref Correzione %%%%
\makeatletter
\vref@addto\extrasitalian{%
\def\reftextfaraway#1{a pagina~\pageref{#1}}%
}
\makeatother
%%%%%%%% Fine correzione Varioref %%%%%
%%%%% VOCI Bibliogrtafia in italiano %%%%%
\renewcommand*{\backreftwosep}{ e~}
\renewcommand*{\backreflastsep}{ e~}
\renewcommand*{\backrefalt}[4]{%
\ifcase #1 %
\relax%
\or
(Citato a pagina~#2.)%
\else
(Citato alle pagine~#2.)
\fi}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\setcounter{tocdepth}{4}
`[/quote]