I have a weird issue with Windows 7 Media Center, where I get an error message stating,
Files needed to display video are not installed or are not working correctly. Restart Windows Media Center or restart the computer".
What makes it weird is I have determined this is an issue with the AUDIO driver - not video.
My set up is a typical Windows 7 64 machine. I'm using a LCD monitor for computing, and I have an Nvidia HDMI card installed with an HDMI cable running to my receiver for watching TV. My tuner is an HDHR Prime. The LCD is connected to the Nvidia's VGA port.
The system has been running fine for months. I swapped out the system HD with a clean HD and clean Windows 7 install for a few days while trying to troubleshoot a hibernation issue.
That is when this new issue started. While setting up the clean HD, I installed the latest VIA HD audio drivers from my motherboard's web site (ASUS). I started getting this error. I didn't attribute it to an audio issue at first, as the error claims the problem is video related.
After searching Google, I discovered others with the same issue. Several people claimed it was related to the audio driver. I tried installing an older version of the audio driver, but it does not fix the problem.
If I open WMC on my LCD, and use the on-board sound, everything works fine.
If I open WMC on my HDTV, any recording I play will play without sound for about 5-10 seconds, then the error displays.
If I open WMC on my LCD, and start playing a recording using the on-board sound, then drag the window to my HDTV, then switch sound playback back to the Nvidia HDMI out, everything plays fine.
So if there actually were a problem with "files needed to display video", switching back and forth between audio output would not fix anything.
Unfortunately, after putting back my original HD, I again updated the audio driver and carried over this problem.
I have tried un-installing the VIA HD audio from Device Manager and reverting back to the old driver, but the problem remains.
It's getting very old having to jump through the changing audio playback device hoop every night.
I searched this forum for that error, but nothing has come up. Has anyone come across this or even heard of it before?