I have created a new theme, and have been prepping it for Drupal 6. There's not much to it, so all I changed was putting in a .info file, and so forth. On my Drupal 6 installation, when using this theme there are many blocks missing, including Login and Navigation. They don't show up in the Blocks configuration page at all.
But when I switch to the Garland theme, they all show back up.
What would make them do this? Do I need to call them somehow? I've looked through the Garland code and don't see anything.