If screen cast on TV Chromecast doesn't work for chromebook, try again after an update. It started to work with me. If some app doesn't open well, try another day, after an update, it opened my app. To scroll screen up and down, use two fingers, which I didn't know but found from an YouTube video. Unlike laptop, this Chrome book has a search button. You can have it read aloud text using different voices. Search button is part of text to speech short cut keys. I can cast the entire chrome book on TV Chromecast, not just the chrome browser. Great purchase. I am satisfied.