Something similar to what happened in Nov 2023 happened again today. "View" seems have to changed so that how when I see message headers listed in my inbox, I have to double-click on message to see it in a separate tab -- while previously I could just click on the header once, and the message text would appear below. That previous problem SEEMED to be fixed by solution offered by David - Press [F8] to return to "Classic View". That doesn't work now. was solved. Attach Screenshot seems to indicate that I AM in "Classic View" but it's very different from what I'm used to. I never understood clearly in Nov 2023 what caused the appearance to chance without any conscious action on my part. I'm equally baffled now. Any help anybody can offer would be appreciated. Thanks for your attention.