This morning I got up and checked my email. All was good. Deleted a few...sorted a few. Standard morning-coffee routine. A couple of hours later I came back...checked my email...or tried to... Thunderbird started up and asked me to open a new email. When I said no I was shuffled off to a page about "Lightning" and told I could remove it from Thunderbird, which I did. But when I proceeded with the mandatory Thunderbird re-start, Thunderbird came up with my email account but ALL of my folders and emails are gone. I don't mean "greyed out" or condensed. Gone. I have tried everything from re-installing to manually checking all the settings. I'm lost...and pretty pissed. Can anyone help?