blizzerada

I am having a bit of a difficult time here. I can play the game if its in windowed mode not full screen. if I try to load it full screen then it most times just freezes. sometimes it will start to load then freeze. but I can always load it in windowed mode no problems. ive tried messing with the in menu settings. This is a good computer its an ASUS built by republic of gaming. Im running nividia and windows 8.1 (im not really that tech savvy so if you can explain a possible fix in laymans terms it would be appreciated. ) thank you for the help in advance.