1. Your iView machine has a small button on the right side which users often mistake for a WiFi button. It's actually a keyboard toggle (turning the keyboard on or off), and it's very easy to touch by accident. See if you can restore your keyboard using this button.
2. A thread is sequence of posts and replies on an online forum, such as Tom's Hardware. You start a thread simply by writing an opening post. And that's what you've done with your iView request.