I was reading a book on my kindle last week and it kept freezing every so often then coming back to life. I just thought it was over-heating or something as I'm always on it (I'm rubbish with anything Gadgety anyway) but then the screen went completely white and didn't come back on. The next day, the screen went to the basic background of the tree, but it won't unfreeze. The light goes orange when I charge it, but otherwise there is no light and the battery was more of less full when it started playing up. It's just over a year old. Any ideas on how to help, or do I have to ring Amazon?