Did you turn on the installation of apps option first?
Go to the Kindle Fire's settings (upper-right) and tap "More," then "Device." Turn "Allow Installation of Applications" to "on." You'll get a warning--just tap "OK.
No, you shouldn't need to do that.
If you have a leathercase on your Kindle; Please remove it before performing the steps below.
Please press and hold down the power button for 25-30seconds until the Kindle restarts
If that does not work, then please respond back and let me know so I can continue totroubleshoot.