[support] Taxonomy terms not displayed on admin screen

I'm having a weird problem with my taxonomy display where when I go to list terms for my vocabulary, all the terms are not displayed, even though they are in the database in both term_data and term_hierarchy. Page 1 displays up to a certain amount, but when I go to page 2, I see "No terms available", even though there are more terms to be displayed. I initially thought it might be the theme (I'm using root Candy in the OpenPublish distro), but even when I use Garland or other themes as the admin theme, I still get the same results. Has anyone else seen this problem? Thanks. Steve