This seems to be a more widespread issue than individual screen problems. I have performed all the diagnostic tests on the screen, and they were all fine. The only shortcuts that can be added are apps that have widgets available (and many apps don't have them), or pre-installed apps. This is very frustrating. I've tried adding from the home screen, long-pressing on the app shortcut in the app-drawer, and from the menu within each app (which doesn't always exist). This seems to be either an intentional omission of the capability or an unintended oversight which has not yet been corrected.
... View more