[horde] First login failed

[Žák Karel Ing.]

I use Horde-devel-2.0_1 and i have problem with login into webmail client. 
First login faliled,   this I get from server:

Wellcome, Zak at server.cz                  logout
Mail 
login to WebPostu 

Warning: Login failed: authentication failure (errflg=1) in Unknown on line 0
Warning: Login failed: authentication failure (errflg=1) in Unknown on line 0
Warning: Login failed: authentication failure (errflg=1) in Unknown on line 0
Warning: Too many login failures (errflg=2) in Unknown on line 0



Second login is OK and then Horde worsks OK. 
Acces from outlook and others is OK.

I have:

					Postfix-20020107
					Cyrus-imapd-2.0.16_2
					Cyrus-sasl-1.5.27_1
					Horde-devel-2.0_1
					Imp-devel-3.0_1
					Mysql-server-3.23.47
					Mysql-client-3.23.47
					Apache+mod_ssl-1.3.22
					Mod_php4-4.1.1


Thanks for help.

karel zak