Cannot add a sidebar

Hi,

I’m a WP Noob and am just trying to figure out how to go about things. I’m trying to re-create the Enlightenment theme demo page and am stuck at the sidebar part. In the sidebar tab in theme options, there’s no button called “Add sidebar”.

However, when I enter a sidebar title and hit enter, the sidebar is added and the “Delete Sidebar” Button appears. However, when I try to make a new sidebar, the first sidebar’s title gets edited!

Any idea what must be going wrong?