[imp] IMP 3.1-FINAL: INBOX always empty (using POP3 server)

[Chojin]

Hello,

I installed and configured as said in manual horde, turba, imp.

When I login to horde, it says in my inbox there are 2 mails.
When I click to go into my inbox, it is empty, no mail.
( inbox url from horde is
https://www.tarakan-network.com/horde/imp/mailbox.php?newmail_popup=no&mailb
ox=INBOX )
Even if I refresh inbox, no mail displayed.
(With reception icon, url is
https://www.tarakan-network.com/horde/imp/mailbox.php?mailbox=INBOX )

My server configuration from servers.php is:
$servers['pop'] = array(
    'name' => 'POP3 Server',
    'server' => 'tarakan-network.com',
    'protocol' => 'pop3',
    'port' => 110,
    'folders' => '',
    'namespace' => '',
    'maildomain' => 'tarakan-network.com',
    'realm' => 'tarakan-network.com',
    'preferred' => ''
);

Specific configuration options are untouched.

May someone help me ?

Regards.

--
Chojin