Alright... I think it was a glitch.
I went ahead closed out of Premiere and went back to one monitor... I use 2 others while working via my laptop. Changed the monitor resolution and then decided to give it another go, via just the laptop screen. And when I plugged the hard drive back in and turned the resolution back, the Day 4 Night was wokring... bizzare...
I had restarted the whoie machine after the initial issue and that didn't fix anything. But for the time being, its back to normal.