Game Crash

[=BLW=Euclides]

Hi

I often have a game crash in many diferent moments, like during game loading, switching windows using Alt+Tab after 3 of 4 times, etc.. But specially some times during key mapping configuration, and this issue happen sometimes during selection of a new control key, sometime at exact moment i press Accept button... The game just crash to the Desktop area of my computer. That is soo sucks, specially in Wings of Liberty, where you simply loose all your streak, like a intentional disconnection.

Do anyone had heard about this issue and how to fix?