Hello

The problem is with your declared document type. If you remove the following line:

<pre class="ip-ubbcode-code-pre"><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"></pre>
Your menus should then work.

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I'd start a revolution, if I could get up in the morning.