In certain documents of mine, the quotation marks are displayed incorrectly. For instance, while writing down `word', as usual, the word is formatted within two reverse backticks.
Some of my other files do not display the same problem. I generally recycle my headers. I've tried in a process of elimination to locate which part of the header is responsible for this state of affairs but so far, have not been successful. My headers are becoming more and more messy and cluttered, many times with packages and styles that are not even called by the document.
I hereby present one header of a document that is rendering this problem:
\documentclass[12pt]{article}
\usepackage{geometry}
\geometry{letterpaper}
\usepackage{graphicx}
\usepackage{amssymb}
\usepackage{amsmath}
\usepackage{epstopdf}
\usepackage{txfonts}
\usepackage{enumerate}
\usepackage[autostyle]{csquotes}
\usepackage{tikz}
\usetikzlibrary{shapes,arrows,positioning}
\tikzstyle{int}=[draw, minimum size=2em]
\tikzstyle{init} = [pin edge={to-,thin,black}]
\usepackage{mathpazo}
\usepackage{lettrine}
\DeclareGraphicsRule{.tif}{png}{.png}{`convert #1 `dirname #1`/`basename #1 .tif`.png}
\DeclareMathSymbol{\boxright}{\mathrel}{symbolsC}{128}
\DeclareMathOperator*{\Max}{Max}
\usepackage[round]{natbib}
\def\Vox{$^{\fbox {\/}}$}
\def\dalem{\mbox{\Vox}}
\def\prom{
\newtheorem{prop}{Proposition}[section]
\newtheorem{cor}[prop]{Corollary}
\newtheorem{lem}[prop]{Lemma}
\newtheorem{exa}[prop]{Example}
\newtheorem{sch}[prop]{Scholium}
\newtheorem{rem}[prop]{Remark}
\newtheorem{axi}[prop]{Axiom System}
\newtheorem{con}[prop]{Conjecture}
\newtheorem{theor}[prop]{Theorem}
\newtheorem{cla}[prop]{Claim}
\newtheorem{hypo}[prop]{Hypothesis}
\newtheorem{tef}[prop]{Definition}}
\pagestyle {myheadings}
\prom
\tikzset
{
box/.style={rectangle,rounded corners,draw=black, very thick, text width=7.5em, minimum height=2em,text centered},
}
\title{XXX}
\author{XXX}
\date{\today}
\begin{document}
Sorry for the inconvenience. Thank you very much in advance.
csquotes,txfontsandmathpazopackages. (Incidentally, why do you load bothtxfontsandmathpazo?) It's not possible to verify this conjecture, though, as you don't provide a code snippet that actually generates the problem behavior you're trying to fix. – Mico May 28 '13 at 12:06\newtheoremdefinitions, thelettrinepackage, the\tikzset, for example) and make sure that the document is compilable (needs an\end{document}`), and that it actually demonstrates the problem (you haven't used quotes anywhere). Then you have a minimal working example document, which makes it much easier for others to help in finding the problem. – Jake May 28 '13 at 12:06\usepackage{mathpazo}. There's nothing strange about them: it's just how they've been designed by Hermann Zapf (Palatino's author) – egreg May 28 '13 at 17:53