I have installed and configured the slideshow header plugin and works fine when viewing the site without www. in the address bar, however when going using www. I get the following error only:
Warning: Cannot modify header information - headers already sent by (output started at /home/icaruspa/public_html/wp-content/plugins/header-slideshow/header-slideshow.php:35) in /home/icaruspa/public_html/wp-includes/pluggable.php on line 866
I have tried to look at the code but it's completely greek to me, please help.