"?" mark) are wrong or missing.</p>
<p>Possible causes:</p>
<ul>
+ <li>If you just typed a URL pattern into a form, then you got
+ something wrong. Press the "back" button on your browser
+ once and correct what you typed.</li>
<li>If you tried to type in the URL, then you've found a
page where you can't do that. You can only view this
page by following links from elsewhere in the configuration