I have used Fiefox on my Windows computers for many years, regularly updating. Nothing I saw prior to updating to v.115 a few weeks ago led me to realise that my combined Inbox would be broken apart. I did ask for a "downgrade fix" pretty immediately, but have had no reply. Looking at other users' questions about v.115, I see many people with similar problems after upgrading. I now have to look in all those of my accounts which appear beneath the top Inbox header (which with trouble I found and have made visible), but also in other haphazardly located inboxes further down the mailbox hierarchy or listings, to pick up those messages not appearing with the bulk of the others. The suggested fixes for lack of global inbox were far too technically intricate for me to tackle and all I really want is my old display of emails back. I do appreciate that as a highly technical person, but with no experience of the most consistent mailbox settings, I may have somewhere gone wrong over the years and this could have helped the current confusion. Thunderbird has become a current hardly usable jumble. But until now, there really weren't any problems. Can anyone help me revert to my previous working Thunderbird layout, without my having to re-program the beast? Thanks.