OK, fist specs. Windows 7 x64 with HDMI cable from MoBo to HDTV. Very Simple. Now, I had to reinstall Windows 7 on my system, and obviously reinstall VLC. Before, I could play everything just fine. But now, my .mkv files with dts audio will play video but no audio. I cant figure out what. I have tweaked the settings and still cant get it to work. Any advice would be welcome. Thank you!