UBB.threads PHP Forum Software Community Forums UBB.threads 6 Version 6 Support Forum index showing only one page of topics

Hi there,

We have an odd problem. On ONE of our forums at http://www.pluscommunity.com/ubbthreads/ubbthreads.php, when you click down to the forum (the first one listed, "Adagio Support"), the forum index only shows one page worth of topics, despite the fact that there are 542 threads in that forum. All of the other forums display multiple pages, but not this one.

Can anyone tell me what's going on??

Thanks,
Trcy