I recently had my computer serviced. I re-downloaded Thunderbird (getting a newer version), and retrieved my saved email. Now, Thunderbird keeps asking me to compact, but when I do, I get this error message: The folder 'Inbox' could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again. Obviously, since I'm getting mail all the time, I have write privileges, and disk space. The question is whether there's a setting I need to specify, or whether Thunderbird is writing to a special partition that may have gotten write-protected when my computer was in the hospital - or whether this is related to a known bug. All help appreciated.