Thanks Dr. Z, for getting back to me.
1. I previously could open Google Tasks from an icon on my laptop's screen and I could then see all of my Lists
2. Now, when I try to open Google Tasks from the laptop's screen I get the following messages:
A. Sign in to Google Taks
B. Connecting
C. Waiting for Sign In Window to Pop Open
D. The Sign in Window has popped open
E. You need to find the window or reload to try again