[horde] Turba is not working

[Martin Hooyer]

Hello

My Turba is not working with mysql ... i have set this in the conf.php

$conf['client']['addressbook'] = 'localsql';

But when i open turba i get:

Warning: Cannot modify header information - headers already sent by (output
started at /home/webmail/horde/lib/Net/IMSP.php:2) in
/home/webmail/horde/turba/templates/common-header.inc on line 4

Warning: Cannot modify header information - headers already sent by (output
started at /home/webmail/horde/lib/Net/IMSP.php:2) in
/home/webmail/horde/turba/templates/common-header.inc on line 5

  Connection to IMSP host failed.


Can someone help me ?

THanks