Hi @Andruidiamond,
Greetings from the Roku Community!
We understand, and we appreciate the reports about this issue when casting your PC on your Roku TV.
Have you tried any devices and does screen mirroring work on it? Also, when doing a screen cast do you see the Roku TV on the list of options?
Let us know more about this so that we can further assist you.
Thanks,
Rey
ERey.
Roku Community Moderator