I ended up returning my 720 to Costco.
The tilt sensor appears to have been defective, as the unit's lighting would never turn off. Also the slideshow would never advance beyond the first image.
I gave Logitech a fair shot at resolving the issue, but lacking any kind of a response, decided to return it.
Interesting thing was, when I went to return it, the man behind the counter commented on how he was receiving many returns of the Logitech - Harmony 720.
I wonder if the quality control on these things is just not all that good.