Crysis 3 black screen

[SAYWHAT0343]

when i go to play crysis 3 all i get is a black screen and the sound when im in fullscreen but when in windowed mode it shows up completely has any one else had this issue and have theyu fixed it.

my specs are

-Asus Z77 Sabertooth

-gtx 670 overclocked to 1.2 ghz with the latest drivers

-3770K at 4.2 ghz

-corsair force series 120GB SSD

-Corsair ax850

-wd blue 1tb

[SAYWHAT0343]

No I use windows 7 home premium

[SAYWHAT0343]

OK i don't know what happened but today as soon is got on my computer it works fine oh well problem solved i guess