change password warnings

["André de Oliveira C. Rodrigues"]

Hi,
Clicking on change password shows that :

Warning: Passing locale category name as string is deprecated. Use the LC_* -
constants instead. in /home/httpd/html/horde/imp/lib/postconf.php3 on line 27

Warning: Cannot add header information - headers already sent by (output 
started at /home/httpd/html/horde/imp/lib/postconf.php3:27) 
in /usr/local/phplib/session.inc on line 448

Warning: Cannot add header information - headers already sent by (output 
started at /home/httpd/html/horde/imp/lib/postconf.php3:27) 
in /usr/local/phplib/session.inc on line 449

Warning: Cannot add header information - headers already sent by (output 
started at /home/httpd/html/horde/imp/lib/postconf.php3:27) 
in /usr/local/phplib/session.inc on line 450

Warning: Cannot add header information - headers already sent by (output 
started at /home/httpd/html/horde/imp/lib/postconf.php3:27) 
in /home/httpd/html/horde/imp/templates/doctype.inc on line 8

After is the change password screen, I can change password perfectly, but above

messages annoys me.

Any ideas appreciated,

André de Oliveira Castanheira Rodrigues