Sorry, that was a hasty submission. The gmail web view is fine, but thunderbird's IMAP view of the target gmail folders is corrupted (and remains so over a reboot). I will try to clear the thunderbird cache, and failing that, I guess it might be a t-bird bug.
Sorry, that was a hasty submission. The gmail web view is fine, but thunderbird's IMAP view of the target gmail folders is corrupted (and remains so over a reboot). I will try to clear the thunderbird cache, and failing that, I guess it might be a t-bird bug.