I have to set the phone to silent twice to make it "stick". How can I do it after once set?
This may help: On my GN also running BB JB 4.1.1 if I want to silence it I will typically hold the volume control down until it gets into vibrate only mode. Then I have to down again to turn that off. So even that is a two step process and it may just be the nature of the Bugless Beast. :)