I've upgraded to Windows 8.1 Pro RTM over the weekend and while Fences v2.11 appears to functionally work fine, I've noticed that the windows themselves don't appear to draw in properly on booting to the desktop. The bottom edge extends further down for some icons than others so it isn't a straight edge. Hitting F5 to refresh the desktop fixes it but this is not an issue I ever noticed while using Fences on Windows 8 Pro.
If required then I can upload a screenshot showing the issue the next time it happens? And if it makes any difference I'm using the latest v331.40 beta drivers for my NVIDIA GeForce GTX 780 graphics card on a single 1920x1200 HP IPS monitor.