I use TB 52.5.0 (32-bit) Desktop Win 7 Home. I use POP mail accounts, and leave mail on server for at most 5 days. Today 104Mb of mails disapeared from a subfolder. (An important cliënt). All of them were at least 3 weeks old. The oldest was about 18 months old. Recent mails from the last 3 weeks are all still there in the subfolder. I am sure I did not accidentally select 700 mails and dragged them elsewhere or delete them. I did not empty my deleted items. I also did not access the pop-box from any where else, and evenso, if I would have, they were all already long downloaded to my local desktop. Looking for a solution I... - Compacted the subfolder. The statusbar responded "104Mb saved". - Deleted the .msf files and restarted TB. - Searched in Personal folders (where it all happens), including Subfolders, in Deleted, in Sent, in Archived, in Spam, everything. - Looked in Windows Explorer and found a 16Mb size mail-file, corresponding with the 3 weeks of mail, indicating that they are not there anymore. What could this be? What am I overlooking? It seems misterious to me. I just copied my nightly backup (110Mb) over and shouldn't have lost anything. BUT.... Upon opening a it, (It takes a while to display) they're gone too! The cut off point 3 weeks back, is at the same point. Why is TB killing my mails??? Is any one available to provide assitance / give hints? Thanks, Regards, Thomas.