Apps are software, too, and sometimes software gets stuck (just ask anyone who’s used a computer for more than a month). To make a cranky app shut down without having to restart the whole iPad, press and hold the Sleep/Wake button down until you see the red “power-off“ slider—but don’t slide this time. Instead, press and hold the Home button down until the app quits and you find yourself back on the Home screen.
Learn more about this topic from iPad: The Missing Manual.
The iPad 2 is faster, lighter, and more versatile than its predecessor, but there's still no printed guide to using its amazing features. That's where this full-color Missing Manual comes in. Learn how to stream HD video, make video calls, manage your email, surf the Web, listen to music, play games, and maybe even do a little iWork. It's the book that should have been in the box.