See, that was what I was thinking. About it resizing it and everything. Regardless, I'll give things a look-see and see what happens.

@Hilter: obviously your native res is much lower then the video wallpaper is meant for (wallpaper is 3440x1440) but still, AFAIK, wallpaper engine should downscale the image and do best fit for your resolution. My 2 suggestions would be, 1) try one of my other wallpapers, perhaps a 1080p first to see and then another 21:9 2) change your resolution to something more common, like 1280x768(1024), 1366x758 is a pretty uncommon one, not sure it that is 16:9 or 16:10, probably neither and that could be your main problem.

Windows 8.1 and 1366x768 resolution.

@Hilter: That's odd, what OS & resolution(native) are you running at?

Seemed like a cool wallpaper. However, no matter how I seemed to try and position it (Center, stretch, etc), all I could see is black.