coz when I launch it, the screen goes black, like usually happens just to get the game and resolution settings etc. right, but the only thing that happens is that I see my mouse showing me that it's loading, then the game shuts down, and if I'm playing sc2 I get to fill in the error reporter, otherwise not.
It happens with every game I try to play, and it really pisses me off coz I'm having holidays, the weather isn't too nice and my parents have occupied to other computers so im basically bored to death.

Pls help me