Had same problem. The songs would show up, the preview audio would work, tune the guitar and the screen would just sit there. strum the guitar it works, just the song would not play. What fixed my problem was: I watch the above video from Youtube, NOT from here. in the discription is a link to a D3DX9_42.dll file that is only 129KB. The D3DX9_42.dll file that I had from a google search was 2.1 MB, seems like not the right one. All is good now. Thank You all for the awsome customs.