Quote: "it says that it needs to close then, 'Extra debug info : 0 0'"
I'm having the same problem. It seems to occor when entities are introduced - happens when loading up a demo (segments load fine, but locks up when it gets to entities), and placing them (prefabs were no problem, but as soon as i clicked the player start entity it all went pear shaped).
Crash involves the world editor screen going black and a 10 second lock up before displaying the error message.
Didnt have any problem with the EA version, and my pc is more than F.E.A.R worthy so theres no problem on the hardware front.
Hope this helps you squashing the bug, I really want to try out V1! XD