My phone downloaded an update over the weekend, now it doesn't seem to work right. I am having problems with the touch screen. Sometimes it doesn't work, for example, I could not answer the phone when it rang. I could not shut off the camera. Another time I was texting and it kept doing things on it's own. It worked fine before this. I wish I could just put it back the way it was. I have rebooted it a few times, doesn't seem to help.