You may need to reset your Kindle DX e-book reader if it experiences a problem. At the first sign of trouble, try restarting the device. If this doesn’t solve the problem, you have two options for resetting: a power switch reset, which retains all of your data, or a factory defaults reset, which erases any e-books, audiobooks and other data you have stored on the device. Tips Writer Bio

How to Manually Reset a Kindle DX  10 Steps  - 73