Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_6 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8E200 Safari/6533.18.5) Background: I have all my movies in mkv format with makeMKV and play them with VLC. I have a creative x-fi external sound card that is hooked up to my Logitech X-540. Before Lion, 5.1 surround worked just fine. After Lion my center channel audio is coming out the rear left speaker. I've checked audio midi setup and everything checked out fine. I also tried playing the files with mplayerX and I get the same problem. Is anybody else having this problem and any ideas would be much appreciated. Thanks.