ho provato questa pagina che va con Firefox3.5 e IE8, mentre con Opera9.64 mi dà il risultato di sotto.
Questa è la pagina; sbaglio qualcosa?
codice:
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="prove_Default" %>

<!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">
<head runat="server">
    <title></title>
    <link href="../js/jquery/ThickBox/thickbox.css" rel="stylesheet" type="text/css" />
    
    <script type="text/javascript" src="../js/jquery/jquery-1.3.2.min.js"></script>
    <script type="text/javascript" src="../js/jquery/ThickBox/thickbox-compressed.js"></script>

    <script language="javascript" type="text/javascript">
// <!CDATA[
var tb_pathToImage = "../js/jquery/ThickBox/loadingAnimation.gif";

// ]]>
</script>

</head>
<body>
    <form id="form1" runat="server">
    <div>
        [img]/ProveNikon/images/miniature/IMG_6.jpg[/img]
    </div>
    </form>
</body>
</html>