Gotta love the Windows 8 design philosophy . . . .
Thank you, bean55. I missed the new preview button because I hadn't accidentally put the mouse over a specific title, which causes the button to appear on screen.
I did not get a crash, but I would like to share what I did get:
That half inch image is the preview. Sure would be nice if it fit the preview pane, or if I could resize it, somehow.
Ah ha! Time for more accidental discovery!
If you double-click the tiny video clip, it will switch to full screen play mode. Then, if you press ESCape, the video drops back down to fit the player:
So, there you have it. The new preview feature.
This is running on my old Windows XP rig. I freaking love Windows XP.