No comments/discussion on Wiki

I have the latest version 1.0.9b2 of the Wiki Pro plugin installed on WP 3.2.1.

When I create a Wiki in the back-end, It shows up on the front-end, but when I click 'discussion' the wiki contents is empty, only the options 'Page', 'Discussion', 'History' etc. are visible. I have checked 'Allow comments' and trackbacks/pingbacks.

Please help?