So, I was hoping not to be an active participant in this thread again, but it was not to be.
I set up my 6th Teric but have not been able to dive it yet. I noticed that each time I turned the computer off, either from the watch or dive mode, the entire screen would momentarily light up before going dark. The light looks like the flashlight mode in watch tools, perhaps a little brighter, a short burst.
I contacted my friends at Dive-Tronix. Michele got back to me that they had not seen this previously and that she would contact Shearwater for advice. I don't know whether Shearwater has seen this before or not. Shearwater recommended replacement of the computer and investigation of the problem.
My 7th Teric is in the mail today and I will send the 6th back to Dive-Tronix as soon as I receive the prepaid mailing box. I sure am adept at setting up my Teric and applying the screensaver with all my practice.
So, now I'm hoping the seventh time will be the charm.