I changed the language from german to english, know it works
Found follwing in the error log:
[25-May-2007 18:06:49] PHP Warning: Cannot modify header information - headers already sent by (output started at /var/www/subdomain/mail_svn/program/localization/de_DE/messages.inc:1) in /var/www/subdomain/mail_svn/program/steps/mail/get.inc on line 73
[25-May-2007 18:06:49] PHP Warning: Cannot modify header information - headers already sent by (output started at /var/www/subdomain/mail_svn/program/localization/de_DE/messages.inc:1) in /var/www/subdomain/mail_svn/program/steps/mail/get.inc on line 111
[25-May-2007 18:06:55] PHP Warning: Cannot modify header information - headers already sent by (output started at /var/www/subdomain/mail_svn/program/localization/de_DE/messages.inc:1) in /var/www/subdomain/mail_svn/program/steps/mail/get.inc on line 64
[25-May-2007 18:06:55] PHP Warning: Cannot modify header information - headers already sent by (output started at /var/www/subdomain/mail_svn/program/localization/de_DE/messages.inc:1) in /var/www/subdomain/mail_svn/program/steps/mail/get.inc on line 65
[25-May-2007 18:06:55] PHP Warning: Cannot modify header information - headers already sent by (output started at /var/www/subdomain/mail_svn/program/localization/de_DE/messages.inc:1) in /var/www/subdomain/mail_svn/program/steps/mail/get.inc on line 66
[25-May-2007 18:06:55] PHP Warning: Cannot modify header information - headers already sent by (output started at /var/www/subdomain/mail_svn/program/localization/de_DE/messages.inc:1) in /var/www/subdomain/mail_svn/program/steps/mail/get.inc on line 67
[25-May-2007 18:06:55] PHP Warning: Cannot modify header information - headers already sent by (output started at /var/www/subdomain/mail_svn/program/localization/de_DE/messages.inc:1) in /var/www/subdomain/mail_svn/program/steps/mail/get.inc on line 72
[25-May-2007 18:06:55] PHP Warning: Cannot modify header information - headers already sent by (output started at /var/www/subdomain/mail_svn/program/localization/de_DE/messages.inc:1) in /var/www/subdomain/mail_svn/program/steps/mail/get.inc on line 73
[25-May-2007 18:06:55] PHP Warning: Cannot modify header information - headers already sent by (output started at /var/www/subdomain/mail_svn/program/localization/de_DE/messages.inc:1) in /var/www/subdomain/mail_svn/program/steps/mail/get.inc on line 111
Nico