The Filemaker website knowledge base contains a 2001 article (no. 104111) about this, called "Text Splitting Across Page Breaks: The Official Response". The article describes a hidden procedure for avoiding text splitting in versions before 5.0. According to the article, the problem was supposedly resolved in 5.0, but that wasn't the case at all, it hasn't changed in any way. Essentially, the existing text tools in Filemaker cannot do what a word processor can do, that is, automatically insert page breaks at the end of every page of text.