This is absolutely ridiculous and unbelievable. I've had problems with the internet connection (which I fixed) the computer (which I fixed) and now the game is still not working. Every time I run the game to play it, my mouse immediately stops functioning. Then it resumes functioning when I leave the game. This is absolutely abhorrent. I've been waiting for almost 10 years for a new Diablo game, and then when it comes out, I spend $60 on it just to have it not work. So, that's it, Blizzard. I will never again buy another Blizzard product. You have officially failed.