When you open a Microsoft Office Word 2007 document and turn on the "Show paragraph marks" (Ctrl + *), you might find squares before every line. This is because the Paragraph – Line and Page Breaks function Keep with next is turned on.
You can turn this function off by following the steps:
Select the text
Right click on the selected text
Click on Paragraph…
Click on the tab Line and Page Breaks
De-select Keep with next
Click on OK