I'll implement an option to disable locking while the user has the system lock screen up. I'll also have an option to save the changed values on unlock. That should allow overriding Volume Locker for those who use the schedule ringer applications, where's my droid, and other similar apps that change volume settings when the phone is locked. The problem with ignoring the mute option is that lots of folks leave their phone on the vibrate setting. If they hit the volume rocker down once, it will also mute the phone. There's sadly no way for me to determine if it's the lock screen that set the volume, or if the volume rocker set the volume. All I know is that the ringer and notification volume are set to zero. It's a flaw in the design of Android's sound system. So, effectively I don't know how it was changed, I just know that it was. I can however detect if the lock screen is up, and I can detect when the screen is unlocked. So I think this would be a good workaround.