It looks like you're facing issues with installing the HDMI output on your Asus M4A78T-E motherboard, specifically related to selecting the HDMI configuration using the AMD Catalyst software for Windows 7 x64. Here are some steps you can try to troubleshoot and resolve this issue: 1. Update AMD Graphics Drivers: - Make sure you have the latest AMD graphics drivers installed on your system. Outdated drivers can sometimes cause issues with hardware configurations. - You can download the latest drivers directly from the AMD website to ensure compatibility with your hardware. 2. Check BIOS Settings: - Ensure that the HDMI output is enabled in the BIOS settings of your motherboard. Sometimes, certain outputs might be disabled by...