Help! My text layers have overhanging space that obscures the layers below it. See image.

Hi, 

I have 3 text layers and each has an invisible overhang that covers the layer(s) below it.  Here is a screenshot of the page with the overhangs circled in cyan and the obscured text highlighted. 

Here is a screenshot of it when I move the lowest layer on the page forward so it shows: 

I have the "Not all composers are dead..." text in a separate box because is set to the full margins, compared to the "John Batiste..." text which is narrower due to thumbnail images that will be to the right of that lower text layer. 

What am I doing that causes this overhang? I do re-use my files - meaning I open last program's file and edit it to the current version as a 'save as'. Is that my problem? 

Thanks for any help and education! 

Jen