I use Joomla 2.5 with Clarion template. I also installed RokGallery. One of my gallery did not show the page buttons and I could not find out why for a while. I followed the steps I mentioned in my last comment, but there was a little mistake. I put an “_” to the position name. When I delete the “_” character it worked.
So an important note: do not use special character (_-#@&) when using loadposition in an article.