I have been watching my YouTube without a problem then all of a sudden all the writing has changed to little squares. I have no idea how this happened or how to fix it. It's all the videos and the settings and it's starting to really annoy me.
Sorry I didn't realise the way I wrote it. I've just been looking up online and switched the box off at the plug and back on but it's still the same, and anything I have looked up I don't get answers for it takes me to different things.