I am also having a problem displaying more than one category, so the people above are not alone.
I go to the admin Dashboard and open the Categories page. I can add new categories and sub-categories here, but they never show up on the blog page. I am able to edit the original (“uncategorized”) category to another name, but that is all.
I “repaired” all of my MySQL tables, as suggested, but this didn’t help. By the way, I don’t see a wp_category table in my database, but I do see the name of my (missing) category in the wp_terms table as well as the description of the (missing) category in the wp_term_taxonomy table.
These are the 10 tables in my MySQL database:
wp_comments
wp_links
wp_ptions
wp_postmeta
wp_post
wp_terms
wp_termwp_relationships
wp_termwp_taxonomy
wp_metadata
wp_users
I think I’m using 2.7. I installed it through the GoDaddy interface.
Thanks !!