Using PhotoPost Classifieds 2.61 - just updated from 2.5
When listing a category and selecting a specific ad (listing), the ad displays but the next/previous link aren't working as expected. Next may show previous and vice versa. The following url will take you to an example: http://www.remarkablecars.com/ppads/showcat.php/cat/855
I have recently been moving a large number of products to new categories, if this makes a difference.