I have the same problem. I had to wait app. 5 minutes (or at least the time it takes to register for these forums
) and then it started downloading additional files.
I have no time to wait for it, but perhaps you just need to be patient.
http://pastebin.com/7SfSWdmL
Update: After waiting another minute or 2, it downloaded yet again some additional (sound) files, then it started.
For me, it just took a bit of time.