I am having a very recurent bug with BB2 that I never have if BB2 is not open. The screen closes for no apparent reason and the cpu goes to sleep. I reopen it and I can continue my game but it forces everyone to wait every single time it happens.

I tried deleting the config file as I've seen in the forums. My graphic card pilot should be ok too.

Any idea why it happens ? It happens once or twice almost every game I play and it never happens when I don't play BB2.