I believe the black screen will automatically freeze and windows will say it does not work anymore if I am correct... Simply restarting the game would work
And well the mouse freezing... 2 solutions:
solution 1: when your mouse is frozen go to game menu and back, it should be fixed then most of the time (If you do not get a black screen.)
Solution 2(Not sure if it works): Do not alt tab out of the game without pressing escape, this will raise the chance of the mouse freeze and black screen.
Hope this helped.
Regarding to this topic:
No freeze yet, have to wait 48 more hours to know if it really has worked... have not anti virus on now because of the fix though