Hello! That's really weird; I have a question, do you have a double monitor setup by any means? My first thought is that it's running but in a different monitor than it should be running in.
Aside from that, do you think you could send us an e-mail with system specs at IncisorStudios@gmail.com? We'll look into it!
Thank you, and I hope it gets sorted out soon; we'll do the best we can to help!