I am running Magento 1.3.2.4 (MySQL 5.1.5 and PHP 5.2.4) and am finding that products do not show up in categories until the page is refreshed. This means that when you access a category page for the first time, it is empty, then when you refresh the page, the products appear.
The URL of the site follows. If you navigate to any subcategory it appears empty. Try refreshing the page and the products show up.
http://www.beadedlink.com/index.php/
I don't know if this is a session or a cache issue but the risk is that visitors to the site will miss entire product categories unless they happen to visit the page twice.
Has anyone else experienced this or similar?