I'm getting green screen on my samsung flat panel from my pc? Using an hdmi cable.

Hi,

Does it happen when you try another monitor which uses HDMI connection as well? This could be an indication of a hardware failure already but try these following steps to identify the issue.
- Connect a different monitor using HDMI connections as well and see if you'll have the same problem.
- Do a clean install of your graphics card driver.
- Uninstall anything related to your graphics card from Device Manager and in Programs and Features.
- Download and install the latest driver from the manufacturer site.
- Reboot your PC once installed.
- If the same problem will persist last step you'll need to do is to try another HDMI cable and lastly a replacement graphics card may be required already.