Hi all, I think my Thunderbird auto-updated yesterday to version 38.7.2 for Mac OSx 10.10.5 (Yosemite). I am no longer able to navigate between my different email accounts. Steps to reproduce: 1. Open Thunderbird 2. Click on one of my email inboxes. 3. Emails are listed in the top right hand pane - The contents of any email I select is displayed in the bottom right hand pane. 4. Click on a different email inbox (or sent, draft, whatever it doesn't matter) 5. The information in the right hand pane does not change. It continues to display whatever email inbox list and/or whatever specific email I list clicked on. The only way to clear this behavior is to close Thunderbird and re-open it. At which time I will again only be stuck with the display of whatever email inbox I happen to click on first. I've also tried changing the layouts with no effect. This is an unworkable situation. Does anyone have any ideas how to fix this? Or how to roll back my version of Thunderbird? Thanks for any help you can provide. elan