I'm new to WordPress. I installed it through Yahoo! web hosting. I set up a new blog using the Twenty Ten template and have had some success modifying it with what I know about XHTML and CSS. Most of the time when I make changes using the Dashboard, however, they don't show up on the blogsite no matter how many refreshes I do. For instance, I can move my links and alter their appearance using the Dashboard, but the changes don't automatically appear on the blog.
I accidentally discovered that if I edit a post to the blog and update the post from the Dashboard, other changes I previously made also finally show up. When I update a blog post, some file must be updating that otherwise isn't getting updated. Can anyone identify that file for me and give me some guidance on how to update it on demand on my own?