I recently updated my Droid 4, and now vibrate mode and silent mode pretty much don't work. I set it on both those modes, and whenever I get any emails or texts, the notification sounds are still triggered. Anybody know of a fix for me? I don't want to have to shut off my phone before work tomorrow--I can't have sound on while working--but if I have to, then I have to. Not sure why the update malfunctions so many things, but this one is the most important. Any help? Thanks!