Hi @ozoner,
A warm welcome here in the Roku Community.
We're here to assist you, and we'd like to gather more details on the issue so we can help further. What specific Roku device are you having issues with? Does this green screen occur when accessing a specific channel or happen throughout the Roku platform? Further, if possible, can we have an image or a video referring to the issue? This would help us a clearer grasp of the issue.
Kindly keep us posted. We look forward to your response.
All the best,
Kash
Takashi O.
Roku Community Moderator