Have you installed 1.1 physX patch?
anyway
Go to the game folder and go to the \Data\Script folder
Open Init.cfg file and look for the line starting with "d.consoleh" and change the value on the right from "0" to "1".
Save and close the file and launch the game.
Press the key ("~") or the ("\") (depend to your keyboard region) to open the console and type the following command:
d.noclip=0
d.fly=1
|