Far cry 3 black screen crash (need help)

My computer parameters : Monitor LG Flatron L1750SQ Processor Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz Manufacturer Intel Speed 3.6 GHz Number of Cores 4 Video Card NVIDIA GeForce GT 640 Manufacturer NVIDIA Chipset GeForce GT 640 Dedicated Memory 2.0 GB Total Memory 3.7 GB Memory 4.0 GB Operating System Microsoft Windows 7 Ultimate Edition (build 7600), 64-bit Service Pack 0 Size 64 Bit Edition Ultimate Display Maximum Resolution 1280 x 1024 DVD ATAPI iHAS120 X ATA Device CD ATAPI iHAS120 X ATA Device Sound Device 1 NVIDIA Virtual Audio Device (Wave Extensible) (WDM) Driver Version Sound Device 2 NVIDIA High Definition Audio Driver Version 1.3.26.4 Sound Device 3 Realtek High Definition Audio Driver Version 6.0.1.6844 Software Java 10.51.2 Flash 12.0.0.70 DirectX 11.0 .NET 3.5.30729.4926 I looking for help from you , gamers , to solve this problem :)