Hey all,
I've searched a lot of times on this forum and on the internet and i haven't find a solution.
My GTA IV start normally except that i can't modify my graphics specs (resolution, texture quality, etc....), and when i start the first mission, some textures are transparents, here is a pic:

I have an Alienware m14x,
I7-2670 2.2 Ghz
Nvidia GT555M 3GB
6gb ram
1600x900
Can anyone help me ?
Thanks in advance !