Drill reports are blank, yet I imported the drill file. Can you help?

Please view the following tutorial movie:


Here's the notes from the tutorial:

No Drill information in my Drill Report - Why?

1. There is no Drill data in this workspace.
Note: Drill holes will appear as "clear targets".

2. Either Import your Drill file, or using FAB 3000 you can create a drill file. Go to menu: Fabrication / Generate NC/Rout Layer(s) / Drill (PTH)...
Note: First make sure you have assigned each layer type correctly.

You'll notice the drill holes are clear and have a target shape.