I am experiencing a similar problem with 5.1 and 7.1 surround sound using VLC 1.1.12 on Mac OSX 10.7.2 running on a Mac Mini (Mid 2011, M816LL/A) hooked up to a Pioneer SC-1525-K receiver via HDMI. I have gone through the Audio MIDI Setup tool in OSX and configured all the speakers so the channels c...