Hi, I am facing two problems 1.Validation error, please try again. If this error persists, please contact the site administrator. While submitting postcard form I am getting the above error sometimes, i have searched drupal site but I couldn't get a solution 2.TCPDF error: Font file not found ----------------------------- While viewing the pdf for a node I am getting the above error in Linux, Ihave changed the path accordingly in tcpdf_config.php and also given the full permission for the fonts directory, It's working fine in Windows. Thanks in advance Abdu Rahiman