Last night I ran a disk cleanup followed by defragment on my PC which uses Microsoft XP. The defragment got stuck a couple of times because of a temporary Internet file that could not be repaired. Eventually I deleted that file. After that I opened Outlook Express and the most recent 53 messages (since 5.2.09) came into the Inbox a second time - as unread messages. I went to bed. In the morning I saw all the messages had disappeared out of Sent Mail, but there were still all the messages in the Inbox folder. In the afternoon these disappeared as well, even though I did nothing to delete them. Please can anyone tell me what is happening and whether there is anything I can do to recover my messages?