Update: see post #23 for solution to Mute Level non-functional.
After installing the Z140 upgrade on my Z110 (which was running Z130 s/w), I thought all went well. This morning, I noticed the volume didn't lower when I pressed the VR button to enter voice commands to my iPod. So I manually lowered the volume and spoke the command - which worked as usual - then manually raised the volume to a normal level. So VR works - just no attenuation.
While sitting at a stop light, I checked the AV System Settings menu to see if my previous selection got turned off during the upgrade. Although th