Items after a 25 count stop listing in directory category

Good Day,
We really enjoy using Flexicontent but have run up on a strange issue. Although we first began using it in early December 2009 and continue to add daily content it is the first we are experiencing listing items number over 25. The 26th will not show. I have tried changing the count list from 10 to 15, (another strang thing when changing item list count to 20 - return a blank white screen) but still can not get items 26, 27, 28 etc listed. The category is simple... daily reading for January... stops on the 25th one.
We are on the latest beta5 version with joomla 1.5x running on centos. Can anyone confirm they can get more than 25 items listed in directory category?
Thank you for your time and talents. Jeff