Same here on dev.lanzdorf.com: Users authenticating via fb wont see menu items with access level "registered" on CB 1.7 on J 1.7 with Facebook Connect 1.4. The user profile is created as "registered", though...
// edit:
(1) Rows created in joomlas user table don't differ from manualy created user records.
(2) Same behaviour with Twitter Connect 1.1 ...
// further:
(1) authorisedLevels() called on a user object of a "regular" registered member:
Array ( [0] => 1 [1] => 1 [2] => 2 )
(2) authorisedLevels() called on a user object logged in with fb connect:
Array ( [0] => 1 [1] => 1 )
// maybe related known issue:
[#26420] user access levels cache not updated when user added to a new group
// quick and dirty fix in core:
in /libraries/joomla/user/user.php:429 insert:
// giving up trying to post the code since:
editing this post I often get
501: Method Not Implemented
POST to /forum/post not supported.
How about
S U P P O R T ?