From time to time, it seems that the page names at Pages > All Pages> will run down the left column in a way that displays only one character on each line, so that the page names are not easily visible. The same issue may happen when you are in Posts > All Posts. To correct this, at the top of the Dashboard > Pages > All Pages (or Posts > All Posts) screen you will see “Screen Options” right under your username. Click on the down arrow next to Screen Options and uncheck some of the boxes, such as Tags, Comments, and ID. Then click the blue “Apply” button. This should make your page names or post titles visible again.