As far as I can tell, my drivers crash, or something in the stack does, everything becomes black, and when it comes back there're graphical artifacts all over the screen and nothing is responsive. I have to do a hard reset of the whole system. No error messages or logs from what I can tell.
It's okay, stuff can be difficult, especially with Unity as far as I know :) I'll have access to a Windows box before the voting ends so I'll play the game there! :)