I wonder if you audio settings are the problem.
Try this...
1) Under "Options >> Preferences >> Audio" set the driver type to MME and regenerate the song.
2) That you Window audio playback is set to 16 bit, 44.1 kHz. This is accessed through Control Panel.
I don't think this is the problem Noel.
I had my driver set to MME already.
And Audio set to 24-bit 48000 studio quality.
I lowered it to the settings you suggested but nothing changed.