Recently purchased a Mac book air and today the sound will not work, even the noise to turn the volume up doesn't work, when i tried to shut down my computer a notification popped up telling me iTunes is still downloading a song. this is not true because the song has already downloaded onto my iPod, buy iCloud , when i tried to open up iTunes it wouldn't open, SO my speakers won't work and my computer can't restart or shut down...could someone please help me?
Considering that you have at least or three times for your Mac, that you would have paid for a perfectly good PC, I suggest that you take it back to wherever you bought and let them sort it out !