Magento Product Review Form Not Working.

This is Magento 1.8 bug, but you can fix it:

Go To : /app/design/frontend/themename/default/template/review/form.phtml

Find:

<form action=”<?php echo $this->getAction() ?>” method=”post” id=”review-form”>

Add :  <?php echo $this->getBlockHtml(‘formkey’); ?> after form


Hope it will help....