I know i know!
Yes i have tried the fullscreen option and i have removed the nude patch, but both without success. I also have the latest DirectX i can have.
Ok I'm sorry i had not understood something important, and now it works fine. Even with the nude patch enabled.
The only problem i have is that the game's written texts are aall in French... i wanna put them back to english of course.
*EDIT: Ok i did as it is written above and it's working fine, in english! thank you very much everyone!