I wonder if anybody has been using the <!--nextpage--> tag to split posts in custom installations of WP.
I have tried using this tag that I found in the WP docs to create pagination inside a post, but so far it does nothing whatsoever. Initially I thought it might be the fault of the theme I was using, but switching to the default WP theme didn't help the situation. I have also tried to create a simple page for the single post where I could use the wp_link_pages function, but again to no result.
Could anyone offer some suggestions to what I need to do to use this tag (or obtain pagination within a post) ?