Mario, in your screen capture, it's the rectangular "Load Song Demo" button that gives me a 'Not Found' message for a given midi style.
Sorry for the confusion.
Noel, going to previous versions didn't change anything.
I confused you, sorry. Make sure the 4 bar preview is unchecked and then just click play. The MIDI style will play using your chord structure. If you like it then click OK. If not then click stop and try another style.
I hope this clears up any confusion that I may have caused.