Preview pane in Apple mail has been abolished in Catalina on iMac
I have no preview pane in Apple Mail in Catalina.
Not at the side, not at the bottom.
Neither shows up whatever option is ticked in "View". Sometimes a dot appears on the bottom frame, but it does not respond to attempts to drag it.
It has been like this every time I have started the computer, so I have not benefitted from the random "fixes itself" effect.
My Catalina is up to date.
Could an Apple programmer comment as to whether Big Sur will give me my preview pane back, please.
Thanks
Frank
BTW, Apple, I'm signed in but the iMac I am typing on does not appear as an option for computers I own, even though I successfully downloaded iTunes music to it last week.