penso che il componente non sia stato adeguato a IE9
alla riga 37 di questo file components\com_chronocontact\chronocontact.html.php sembra non gestire IE9
<?php if ($MyForm->formparams('LoadFiles') == 'Yes'){ ?>
<?php if((!trim($MyForm->formrow->theme))||(trim($MyForm->formrow->theme) == 'default')){ ?>
<link href="<?php echo $CF_PATH.'components/com_chronocontact/themes/default/css/'; ?>style1.css" rel="stylesheet" type="text/css" />
<!--[if lt IE 6]><link href="<?php echo $CF_PATH.'components/com_chronocontact/themes/default/css/'; ?>style1-ie6.css" rel="stylesheet" type="text/css" /><![endif]-->
<!--[if lt IE 7]><link href="<?php echo $CF_PATH.'components/com_chronocontact/themes/default/css/'; ?>style1-ie7.css" rel="stylesheet" type="text/css" /><![endif]-->
<?php