Trying to start up Crossfire and "blue screen" comes up

I was trying to start up Crossfire... I start it up by double clicking CF_G4Box and then i click "Play" and the HGWC loads and then my computer shuts down and a blue screen pops up. Then the computer starts up and I try to click the CF_G4Box to play CrossFire. The HGWC loads up and then the computer shuts down... The blue screen pops up. If you have an idea of what is happening or you know how to fix it, please comment!