the log doesn´t tell, what "Windows says your SpeakerConfig is" on verbose level 2. with directx output it still doesn´t work. i figured out, if i change audio output from directx to Win32 waveout extension it works and standard audio device is 5.1 if available :-) works with your new vers...
I tried playback with 0.9.0 and the default is still Stereo and not 5.1. I have the same problem. Even if I make a playlist and set all mediafiles manually to 5.1 and if i switch the files in playlist, the setting on audiodevice is gone to Stereo instead of keeping 5.1. Manual setting to 5.1 works o...