I turned off my phone for about 2 hours today and when I rebooted it all my apps were gone. The names of the apps still appear on my home screens (with a picture of the android robot), but when I click the app I get a message that says "the linked program is no longer installed on your phone." Also, when I click all programs only the stock apps appear, so everything I downloaded is missing. Anyone else have this problem? Is there an easy fix?