I am using the Windows 10 DVR to record game clips. I'm not sure if it is related to the graphics drivers but I recently purchased a new graphics card (R9 390X) and all the clips I have recorded since have had a black border around it. The thumbnail in the Xbox app shows as full screen but as soon as I play it the border shows. I've attached a screenshot to show. I'm wondering if this is a graphics setting I haven't turned on/off that is causing this? The screenshot from Just Cause 3 has a black border, the screenshot from Prison Architect is an older screenshot.