How do I unmute the sound on my Imac?
I just got a new Imac and am new to Mac. Somehow the sound is muted. I don't seem to be able to unmute it. When I go to system oreferences and go to sounds, it shows the sound is muted, but the box that is checked is grey and won't respond to clicking. Anyone have an anwer?
iMac (27-inch Mid 2011), iOS 5.0.1