The Energon Pub

I'm having trouble viewing replies on certain threads. Every time I open the last page of a thread it only loads the top 1 - 3 posts and nothing else (not even the bottom of the site). This only seems to be the threads near the top of the forum (i.e. the latest ones that aren't stickies).

If I hit "Post Reply" it brings up the text box but no "Submit" or "Preview" buttons and doesn't show any of the previous replies below my text box like it normally does.

Also, I can see this code written above the top posts: