#5 Problem setting presenter

[Andrea Rizzoli]

When an author tries to set the presenter for an abstract:

sql: UPDATE authors SET presenter = 0 WHERE paper_title = 'Are model frameworks an obstacle to model reuse'
sql: UPDATE authors SET presenter = 1 WHERE paper_title = 'Are model frameworks an obstacle to model reuse' and md5(email_address) = 'e4ba746d3a159e00f2c3e47d5575b601'

Warning: Cannot modify header information - headers already sent by (output started at /usr/local/www/iemss/docs/wcmt/wcmt10/includes/topleft.inc:181) in /usr/local/www/iemss/docs/wcmt/wcmt10/change_presenter_1.php on line 59