aaSorting Not Disabled

Hi, I've been using DataTables 1.7 for a while and just downloaded 1.9.4 and set up DataTables to user server side computation (bServerSide: true) for the first time. I've also set aaSorting: [] so that DataTables will NOT do an initial sort. However, I see that DataTables is calling the PHP server side script just after the table loads and updating the table. I haven't used servers side processing prior to this, so I don't know if it's an issue with 1.9.4 or something else that I'm doing wrong.

Thanks for the great program.

Mitchell