I've downloaded 4.0, and I'm using the new Theme Builder to create a template layout for all of my product pages. I already had a layout saved in my library from pre-4.0, so I simply uploaded it as the body of a new template, and I set the template to apply to "All Products." I saved the changes, and everything seemed to be fine until I went to open up one of the products...a box pops up on my screen that says, "Missing Post Content Module." It goes on to state that in order to use dynamic content in the Theme Builder template, I have to have a "Post Content Module" in my layout (which, I don't have). Has anyone else experienced this? What have you done to fix this issue?