Win 10 compatibility issues
My computer did the mandatory MS update sometime over the weekend (around 12-9-16), and it brought back a massive compatibility issue I had from the early days of Win10. It pretty much disables all video out except for my cursor (the rest os a black screen; if I hit esc a bunch of times it'll flash the vnc error window i sometimes get).
Running Win10 with an NVIDIA GeForce GTX 970, with updated drivers on everything and I even tried a clean install of windowblinds, too.