I'm using Rocksmith 2014 with the D3DX9_42.dl and custom dlc placed in the correct folder (windows 7). At first I forgot to add the D3DX9_42.dl file so it would just freeze after tune up at the play screen but now since the D3DX9_42.dl file is added the game immediately crashes at startup. As soon as I take it out it works again fine. Any ideas? I have cherub rock.