It seems like you're facing an issue with your AverMedia M135 TV card when trying to watch TV through Windows Media Center. This problem could be due to various reasons such as driver issues, compatibility problems, or settings configuration. Here are a few steps you can try to troubleshoot and resolve the gray screen issue: 1. Check Drivers: - Ensure that you have the latest drivers installed for your AverMedia M135 TV card. Sometimes, outdated drivers can cause compatibility issues. 2. Compatibility Check: - Verify if your AverMedia M135 TV card is compatible with Windows Media Center and your operating system. 3. Restart Windows Media Center: - Close Windows Media Center, restart your computer, and then try opening...