Cyrus authentication

Hello!

I've problems with authentication :(
Can somebody help me with this problem? It's really urgent and important!

Here's log:
cyrus@isserver:/home/iced$ imtest -p imap -m login localhost
C: C01 CAPABILITY
S: * OK isserver Cyrus IMAP4 v1.6.24 server ready
S: * CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ NAMESPACE UIDPLUS X-NON-HIERARCHICAL-RENAME NO_ATOMIC_RENAME UNSELECT ID
S: C01 OK Completed
Password: Terminated
cyrus@isserver:/home/iced$
cyrus@isserver:/home/iced$ imtest -p imap -m login localhost
C: C01 CAPABILITY
S: * OK isserver Cyrus IMAP4 v1.6.24 server ready
S: * CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ NAMESPACE UIDPLUS X-NON-HIERARCHICAL-RENAME NO_ATOMIC_RENAME UNSELECT ID
S: C01 OK Completed
Password:
+ go ahead
L01 NO Login failed: generic failure
Authenticated.
Security strength factor: 0
. logout
* BYE LOGOUT received
. OK Completed
Connection closed.
cyrus@isserver:/home/iced$

And here's my imapd.conf
configdirectory: /var/imap
partition-default: /var/spool/imap
admins: cyrus root
srvtab: /var/imap/srvtab
sasl_passwd_check: shadow
allowanonymouslogin: no

Best regards,
Andrew Kirilenko.