Grey Screen on Pokemon Sun and Moon

Hi, when I run Citra with Pokemon Moon and Sun i’ve only sound and grey screen.
I’ve just update my GPU Drivers at the last version.
System Information

  • Operating System: Windows 7
  • CPU: Intel i5 750
  • MB: AsRock H55M-GE
  • GPU: Radeon HD 5700 series
  • Citra Version: Nightly Build - 4af793c
  • Game: Pokemon Moon and Sun

Are the drivers the Crimson beta drivers? 16.2.1