precisamos de ver o teu ficheiro header.php da tua theme...
Ok.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="
http://www.w3.org/1999/xhtml" <?php language_attributes(); ?>>
<head profile="
http://gmpg.org/xfn/11">
<meta http-equiv="Content-Type" content="<?php bloginfo('html_type'); ?>; charset=<?php bloginfo('charset'); ?>" />
<title><?php bloginfo('name'); ?> <?php if ( is_single() ) { ?>
» <?php
foreach((get_the_category()) as $cat) {
echo $cat->cat_name . ' ';
} ?> <?php } ?>
<?php wp_title(); ?></title>
<meta name="generator" content="WordPress <?php bloginfo('version'); ?>" /> <!-- leave this for stats -->
<link rel="stylesheet" href="<?php bloginfo('stylesheet_url'); ?>" type="text/css" media="screen" />
<link rel="stylesheet" href="<?php bloginfo('template_url'); ?>/nav.css" type="text/css" media="screen" />
<link rel="stylesheet" href="<?php bloginfo('template_url'); ?>/print.css" type="text/css" media="print" />
<script type="text/javascript" src="<?php bloginfo('template_url'); ?>/js/dropdowns.js"></script>
<link rel="alternate" type="application/rss+xml" title="<?php bloginfo('name'); ?> RSS Feed" href="<?php bloginfo('rss2_url'); ?>" />
<link rel="pingback" href="<?php bloginfo('pingback_url'); ?>" />
<?php wp_head(); ?>
</head>
<body<?php if ( is_home() ) { ?> id="home"<?php } ?>>
<div id="page" class="clearfloat">
<div class="clearfloat">
<div id="branding" class="left">
<h1><a title="<?php bloginfo('name'); ?>" href="<?php echo get_option('home'); ?>/"><?php bloginfo('name'); ?></a></h1>
<div class="description"><?php bloginfo('description'); ?></div>
</div>
<div class="right"><?php include (TEMPLATEPATH . '/searchform.php'); ?></div>
</div>
<ul id="nav" class="clearfloat">
<li><a title="<?php bloginfo('name'); ?>" href="<?php echo get_option('home'); ?>/" class="on">Inicio</a></li>
<li class="page_item page-item-9"><a title="<?php bloginfo('name'); ?>" href="<?php echo get_option('home'); ?>/categoria/noticias/" class="on">Notícias</a></li>
<li><a title="<?php bloginfo('name'); ?>" href="<?php echo get_option('home'); ?>/categoria/concertos/" class="on">Concertos</a></li>
<li><a title="<?php bloginfo('name'); ?>" href="<?php echo get_option('home'); ?>/categoria/festivais/" class="on">Festivais</a></li>
<li><a title="<?php bloginfo('name'); ?>" href="<?php echo get_option('home'); ?>/categoria/bandas/" class="on">Bandas</a></li>
<?php wp_list_pages('title_li='); ?>
</ul>
