I bought the game in the kee stage and installed unreal engine. When I start it up, it all goes normally, I press use open beta then wait. After a long loading stage it takes me to the normal start screen, except the mouse is lagging and it doesn'r respond to my clicks. Also, it's obviously having trouble and the music keeps glitching out. I have to eventually force shut down my computer. Is anyone else having this problem? How can I fi it? Or is my computer just not good enough?