Cant start Assassins Creed Rogue

i have tried the Codex and the Black box repack version but both are always crashing when i am starting up the game. Any advise ?
Answer #1
It helps if you post your system specs..
Answer #2
Intel Core 2 Quad Q9450
4 gb ram
Nivdia gtx 280
Answer #3
What Operating System?
Answer #4
Windows 7 Home Premium 64 bit
Answer #5
Could be your Graphics card is not up to it..
Assassin’s Creed: Rogue system requirements:
Supported video cards at launch: NVIDIA GeForce GTS 450 or better, GeForce 500, 600, 700, 900 series
Answer #6
Thanks for your help