Originally posted by 「Ｂｏｋｕ♥」:

At the "Press Start" screen, any input will throw up multiple messages of
"System.InvalidOperationException: Nullable Object must have a value."

And a final message with
"System.InvalidOperationException: Song playback failed. Please verify that the song is not DRM protected. DRM protected songs are not supported for creator games. ---> System.InvalidOperationException: An unexpected error has occurred."

After these messages are shown the game simply hangs on the "Press Start" screen. The cursor is detected but no other inputs work.

This is on a fresh install.

All drivers, DirectX, .NET, etc up to date.
DXDiag: http://pastebin.com/Ui4g3DH1