i played a game called League of Legends. so it worked well for the Champion Select part. the game in it's loading screen still works well. but when the game starts (there shows the Kills Death Assists CreepsKill and time), it only work for like a few seconds until suddenly , the whole thing crashed (cannot Alt-Tab or Ctrl-Alt Delete or anything. cannot even toggle on/off for Num Lock or move the mouse) . please reply to me as soon as possible. thanks 
Playing the Garena LoL Singapore Sever
Playing the Garena LoL Singapore Sever