I've got two assemblies that are similar to each other accept their length. one shows up fine in shaded with edges but the other doesn't show any visible lines. I'm not sure this is something that can even be "fixed" or if its just a graphics card issue.
Your image shows the heads-up toolbar, where you control what is shown on your screen only.
What I believe Chris Saller was referencing, by how the views are displayed, is this:
which is shown in the properties of a drawing view, visible just by selecting that view.
Note this screen image was taken from a parent view, where child views also have a checkbox to [_] Use parent style.