Report "When my Gleam cellphone was open, I saw a lock symbol somewhere at the top of the phone. Now, it's gone. Would this block a text message from coming through? Why did this appear, and then disappear? I noticed this symbol yesterday, and today, it was gone. My friend told me she sent me a text message yesterday, but I told her it didn't go through. I never received it, yet her Verizon cell phone indicated that the message was delivered. Help! Can't figure this one out"