[jimhaynes]

After upgrading to 5.0.0.591 I no longer have an icon for Google Apps Sync and when I press the Lock Button on top of the BB the screen goes blank. Before my name and a lock icon appeared on the screen showing that the BB was locked. (I can unlock by again pressing the lock button.)

[surfgrom04]

Check in your "downloads" folder for Google Sync icon. If you don't see a downloads folder, make sure you have "show all" checked.

As for your locking question, that is simply how the device locks on the new OS. Many other threads on here discussing it, and even more threads letting you know that someone else is discussing, haha.