Users never come back - using Facebook Connect

[ComoEstaEso-com]

True, yet our site is full access without requiring registration.
Even the pictures load without registration.

Maybe I messed up somewhere in the Facebook Connect installation steps?
Odd...

Thanks for the feed-back blind-eddie!!

--------------- Added [DATE]1298776338[/DATE] at [TIME]1298776338[/TIME] ---------------

Ok, I just did the following:

vB ACP >> Users >> Search for User
I entered the eMail address of a Facebook Connect user that registered today.
In his information, of note:
Primary Usergroup: Registered Users
Display Usergroup: Default (is this Registered? Or Facebook Connect??)
Additional Usergroups: Facebook Connect (marked checkbox)

And at the end:
External Connections: Facebook Connected YES

Any thoughts?