My mainmenu is set up with several parent menus that are section lists, and under each are category blogs as sub menus. For example:
[code:1]Top
|_ Section 1
|_ Category 1
|_ Category 2
|_ Section 2
|_ Category 3
|_ Category 4
...
etc.
[/code:1]
If I am not logged in and I click Section 1, Categories 1 and 2 are displayed as child menu items of Section 1. After I log in as either a registered user or as admin, clicking Section 1 no longer displays the ctaegory sub menus. The Access level for all menu items is set for Public. I have CB installed, so I am (should be) using the CB login module, and not the core Joomla login module.