http://wordpress.org/plugins/formidable/
When Connections is installed and you attempt to update the ‘Screen Options per page limits’ in Formidable Forms, Entries, Templates, or Custom Display pages the limit is set to ‘1’ and you’re unable to update the limit further; it stays ‘stuck’ on 1. There is no known solution.
NOTE: This FAQ was written based on Formidable Forms 1.06.11