I've just downloaded macOS Catalina on to my MacBook Pro 13" (I think its a late 2012 purchase). The download and installation went though quite well. But I have been unable to change fonts in Mail, but I am unable to view Preferences under Mail. When I click on Mail>Preferences, all I get to see is an empty box titled 'Signatures'. And, even this box is unresponsive.
Any help would be appreciated.
Thanks!
Any help would be appreciated.
Thanks!