There actually may be more to this issue. I am new to CB but have been using Joomla for a while. After i installed a fresh Joomla 1.0.13 site and tested it with content for about a week, I decided to install CB. I started testing the links and sure enough, I got the very same error...on every single link in the site. I can't login, or simply get to any other section of the site. I am uninstalling everything and will start from scratch today...I will let you know if anything changes.