It is days like this when you start having second thoughts about Linux 
My sound (speakers) failed again.
During startup, ZORIN banner appears, but before the mouse cursor appears on screen there is a "click" heard though the speakers. (I know from experience that is bad news).
Logged in, then Settings>Sound>Speaker Test confirmed - silence from left and right speakers.
I then did my normal (non-scientific) routine of waggling the volume control. Result, no sound.
I then did a Restart. Again loud pop, so again no sound.
I then played with Pulse volume control. Result, no sound.
I then opened Alsamixer in terminal. Checked sliders all in right place and nothing unexpectedly muted. Result, no sound.
Then tried what @Aravisian told me last time this happened:-
I did:
sudo alsa force-reload
Then back to Settings>Sound>Speaker Test - no sound.
Whilst there, I waggled the volume slider a few times and toggled between headphone and speaker a few times. Then heard a faint click.
Speaker Test then reported "front left", "front right" Yay! about time too.
This time I cannot blame a kernel update as the suspected cause. I did install the new kernel update offered by Software Updater during all that but I had no sound from before that.
So what is it about Zorin and Sound? Why is it so unpredictable?
My magic wand is getting worn out.