User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.20) Gecko/20081217 Firefox/2.0.0.20 Build Identifier: 2.0.0.18 (20081105) I can receive new messages, and it appears in my Inbox folder. But if I close the Rhunderbird, and reopen it, my last 3-4 new message (only the new message) will disappear. If I receive new messages, the "older" ones appear in the Inbox folder, but the latest one disappears. If I open the .../profile/local folder/inbox file, I can detect all my incoming mails, but if I open the Thunderbird, the last few new message disapper. Reproducible: Always Steps to Reproduce: 1. 2. 3.

Do you have it set to show All mail (not just unread)? Also check other potential causes - http://kb.mozillazine.org/Disappearing_mail

(In reply to comment #1) > Do you have it set to show All mail (not just unread)? > Also check other potential causes - http://kb.mozillazine.org/Disappearing_mail Yeah, I set my Thunderbird to show all my mails, but still some of my mails are missing. But I can read them in the inbox file, as I wrote it.

does typing the subject of the missing message in quick search or message search (edit, find, seasrch messages) show the missing message in search results?

Reporter, any response to comment #3?

=> incomplete additional information would be useful, even if you no longer see the problem you might also try the latest beta http://www.mozillamessaging.com/en-US/thunderbird/early_releases/