All of a sudden, I lost sound from Live TV in Windows Media Center--Windows 7-64 bit. I have a Hauppauge 1850 TV tuner card, and using WinTV 7 I get both picture and sound. Using Nerovision Capture, I also get a picture and sound from my set top box, but not from Windows Media Center. It's apparently a common problem, but many of the suggested solutions from Google and Windows forums have not helped! Hopefully the very computer knowledgeable Windows Secrets community will have a workable solution! Thanks very much!