Joomla: 1.5.21 stable
MySQL : 5.1.39
PHP: 5.2.11
After upgrading to the professional version of Akeeba Backup, in the configuration screen I can't choose for Upload to Amazon S3. The only options are: No post-processing and Send by Email.
Very strange because on my other website, in the same environment (MySQL, PHP, Joomla and Akeeba versions), it is working fine.
How do I get the post-processing options to work?