The first thing that comes to mind is perhaps the memory allocated to PHP is being exhausted. hard to image with only 35 entries. But my first suggestion is to try increasing this value. YOu might need you web hosts help do do this. I suggest a setting of 128MB.
Here’s a link to a article that provides several methods to increase this value. Which one that will work for you really depends on the web host. Try starting at the top of the list and work your way down.
You can see the memory limit value on the Connections : Tools admin page under the System Info tab.
Hope that helps. Let me know.