So I got AC Revelations in the post the other day. Installed on my Windows 7 64bit Gaming Rig, installed all the updates that were prompted by the software.

When I play the game the menu and intro sequence all appear fine but then when I get to the game to graphics are incomplete. I can only see the eyes of Desmonds and a faint outline of his body. buildings are also partially visible.

Because this guy Desmond has lost his mind I thought it was just part of the game to start with

How do I fix it?