A trick that I've found works for me - D-view Cam always seems to want to display on monitor #1 - regardless of whether that monitor is the system monitor or not.
What I did is make the monitor that I wanted the software to open up on physically #1 ( put the cable in the first output) and connect my second monitor to the other port. Then (in windows) make monitor #2 the primary monitor for the system - that gets your task bar on #2, move your sidebar and icons to #2 and you should not have any conflicts from there.
This is just what worked for me, your mileage may vary.