[horde] POP3 loging problem

[Ady]

Hy!

I have horde 3.0.5 and imp 4.0.4-rc2 and i set the imp to use pop3 
protocol, but i try to log in and i get this error message:
#########
Sep 17 20:48:52 HORDE [error] [imp] FAILED LOGIN 192.168.3.172 to
127.0.0.1:110[pop3] as ady at domeniu.com [on line 237 of
"/var/www/html/webmail.domeniu.ro/horde/imp/lib/Auth/imp.php"]
#########

but it is not pop3 problem because if i try to get my mails using pop3 all 
is fine

what could be the problem?

thanks!