Hello Craig,
just to keep you updated: I´ve sent some infos about my experiments with different PC´s to the ATIK-support. Maybe that´s helpful. In my case, a Core i3-PC showed those artifacts using Artemis and using DUSK. Two different i5-PCs worked well with Artemis, but sometimes had trouble with DUSK. All computers run with WIN7 64 bit.
A newer PC with i5 processor and WIN 10 also worked fine with Artemis, but refused to connect to the camera under DUSK. I could not find any influence of USB2 or USB3 interfaces.
That´s just an observation, hopefully it helps.
Clear skies!
Ottmar