Why does my blog page only show one post?

I didn't think I would encounter this kind of problem in creating a static front page because this seems to开发者_JAVA百科 be a very trivial customization of wordpress. I am using Thematic as my parent theme. I created a home.php template and pasted the code from the parent's page template into it. I also created two new blank pages named Home and Blog. I set home.php as the template for page Home. Then I went to Settings->Reading and set my front page to a static page and selected page Home. I also set posts page to page Blog. Now when go to my Blog page, I only see a single post?

What is set for "Blog pages show at most" in Settings>>Reading? Do you have more than one post?