Okay....this is odd. Probably 60% of the time when I hit the volume down button the option to change the Ringer/Notifications and the Media/Apps volume comes up. I can then, of course, mute the volume on each of those or obviously adjust the volume. However, the other 40% of the time, only the volume for Media/Apps comes up, with no option for the Ringer. Has anyone experienced this? I think this tends to happen when I'm in my car which is communicating with my phone via Bluetooth....could that have a connection to this issue? Also, is there an easier way to mute the phone quickly? Thanks....Cortana does not seem to perform the mute feature.