I wanted to change my existing email account from a POP server to IMAP server. The tech support rep from my internet supplier walked me through removing the existing POP account and then setting up an IMAP account with the same username as the original POP account. After setting up the IMAP account, the inbox was empty. All previous messages were gone. The tech support guy spent an hour trying to "find" the old contents of the inbox. It ended with him admitting he was not very familiar with Thunderbird and he was sorry. I have spent hours trying to recover the contents of the inbox with no success. Any help recovering the inbox contents would be greatly appreciated. Thanks.