What to do? Fixed green screen, then getting no online video after few days.

I started watching online videos a few months ago. I would get these green screens, depending on where I go. I finally got around to fixing the green screen problem with reducing the acceleration settings in Mediaplayer & my display. It was a great few days, where I was able to watch streaming videos from CNN, videos from ABC, NBC & Fox. Then I just stopped being able to watch any videos from these networks. The players just won’t load, or videos won’t show. What happened and how can I fix it?