I recently installed 11.2 on my hp dv-9000 laptop. I previously had 11.1 on it. (i did a new install, not an upgrade) I have noticed that in 11.2, when I hit the hp mute button, a mute graphic comes up and the sound mutes. when I hit it again, an 'un-mute' graphic comes up, but the sound does NOT come back. In order to get the sound back, i have to hit the sound + or - buttons. This worked just fine in 11.1 on this same hardware.

anyone point me in the right direction?