Hello fellow Mac-User. I bought 2010 MBP 13" some weeks ago and I wonder if I can use the video out port for HDMI with audio. I already bought an adapter, but when I plug it in my macbook and in my second display, the video part is working just fine, I don't seem to get any sound, though. I'm pretty sure the 2010 MBP supports audio out via HDMI. Do I need to activate it somewhere or is my adapter not working?