So basically, I launch the game, get into the menu, my screen starts flickering, then my graphic card actually crashes and the game stops running so I need to force it to close.

Im on 64bit WIn7 with a Nvidia GTX 670 with the latest drivers.

Any suggestions on what to do ?

Nvm, after experiencing some other issues, I did some research online and realized that the last 2 nvidia driver versions are complete garbage. I reverted back to 355.98, the issues are fixed and the game works now. There's still some minor things like the cursor flickering when I move it and the text flickering in cutscenes but the game is perfectly playable now.

So if you have issues like artifacts, flickering, driver crashes etc. I suggest you revert your geforce drivers, the latest couple of them seem to cause problems for a lot of people.