Hello there.

The main trouble I'm facing is that I can't get it to have my contacts
sorted by "Last name".

I do following steps to create a new contact:
in the "New contact" window, I click on the "Name..." Button and write
"NAME LASTNAME", then press OK;
in the field "Email Address" I type the email address.

Now I'm seeing at "Name...": "NAME LASTNAME"
and at "File As" I have: "LASTNAME, NAME" (yes, there *is* a comma!).

At "Display as" I see "NAME LASTNAME (EMAILADDRESS)", whereas on some
clients I just see "NAME LASTNAME" without email address.

I then "Save and close" this contact window.
Then I open the Address Book and see
NAME LASTNAME - NAME LASTNAME (EMAILADDRESS) - EMAILADDRESS - SMTP
(these are the four displayed fields).

Now, HOW may I sort the records with "LASTNAME, NAME" (as defined in
"File As")?

Many thanks in advance...