I am sure that when I used to open thunderbird to read my e-mails there was a set of folders down the lhs next to the subject column...junk, inbox, draft and deleted.
These are no longer there.
How can I retrieve them?
Am I going mad and imagining this?

could just be that it has been dragged to the left try hovering the mouse over the far left hand edge and drag the folder panel back into veiw.
i cant see any toggle options myself, so i hope the above helps.

Brilliant, thanks sugarcube:thumbsup: