I've just changed laptops in my mobile set-up and on my second screen, connected using extended desktop) there appears a thin white vertical line on the left top corner. I'd imagine it's a pixel or 2 wide and 100 - 150 long.

Strange thing is: if you take the vMix screen (on laptop) off max (full screen) and move the resulting window to the left a bit, it disappears from the second screen. It's almost as if the vMix screen on the laptop is bleeding a little to the second screen, but only for the portion at the top.

Weird. Can anyone help?