I have had the problem since the update of not being able to see players skins, when playing multiplayer, I can see my own. Have played as much as 2 hours at a time, approximately 5 days of update, and they are not loading. The box is unchecked that ask Ignore player skins, any server same problem all the cars are grey. Also the donation button ability in race to server is not working. My car engine sounds will come and go, but never stay on, this problem was happening before update, just though I would ask about while I am here, I do listen itunes while playing, this is also in multiplayer.
I can hear the game and car sounds tires etc, and have ability to turn down the in game music and that works correctly.
Other than that the game runs great the HuD options are much more responsive, faster, game looks beautiful.

System: Dell XPS 630i Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2.4 GHz, Ram 3.1 GB video ram 1.7 GB, 2/GeForce 8800 GT, DirectX 10, Microsoft Windows 7 Home Premium: Logitech F310 game pad controller.