Any ideas?? While I was going over my email messages from today(all from reputable senders), ALL of my read messages disappeared. Among the 20 or so that disappeared were 3 that I have been unable to delete since about Oct. This is a Vista version, with webroot and nortons 360 running. I then experimented. I marked another message as read....went to sent....came back to inbox, and this message was gone too. Not moved to deleted...gone. I then went in and unchecked the 'mark messages read...' box. I went into inbox, moved an unopened message to a misc. sub-folder, marked as read (opened it), went to inbox and then back, and the message was still there. So I've figured out how to save messages this way, but still any read messages ( i've sent myself a few experimenting) in inbox permanently disappear when closing email or moving out of inbox. I haven't downloaded any Windows Updates since Jan.