Thank you for you attention!
I tried every other solution, and the game still doesn't launch. My video card is AMD Radeon HD 6670 and I'm using Windows 7 64 bits. I tried to edit local_saved_data and that's what is inside:
< local_saved_data >
< WindowMode type="bool">0< /WindowMode >
< /local_saved_data >
and my resolution is 1600x900.
If you need any other information about my computer or system, just let me know