help, getting 500 server error trying to install. error messages from the server error-tracer:
 
/kunden/homepages/36/d176208770/htdocs/mail/installer/index.php: line 1: ?php: No such file or directory
/kunden/homepages/36/d176208770/htdocs/mail/installer/index.php: line 3: syntax error near unexpected token `'error_reporting','
/kunden/homepages/36/d176208770/htdocs/mail/installer/index.php: line 3: `ini_set('error_reporting', E_ALL&~E_NOTICE);'
 
(no direct access to apache logs on my shared host)