I've installed (and re-installed) 3.1 several times. Sometimes it starts all the way up to the interface but has a blank window overlay with the Cura in the top left and ? X in the top right. There isn't anything inside the window. Other times it starts and gets all the way to loading interface and then shuts down. I've deleted the users/name/appdata/local/cura/3.1 folder and two text documents in the tree but that hasn't solved the issue.
I'm also running with success v15.04.6.
Can anyone point me to a possible solution?