David, I appreciate the help. Here is where I'm enountering a problem. I open the Terminal window and see this:
Last login: Thu May 22 19:12:44 on ttys000
maxpowrssimac3:~ masgpwwers$ sudo killall coreaudiod
Password:
Sorry, try again.
Password:
I pasted sudo killall coreaudiod after masgpwwers$ and then Password: prompt appears. It won't let me type in my password. I key the password and no letters appear. I then opened a Word doc, typed my password, copied it but couldn't paste in. Obviously, I then hit Return which is why it responded Sorry, try again.
What am I doing wrong? Thank you.