I'm using Outlook Express 6.0 on a network at work. The Inbox shows unviewed E-mails. When I go to open the Inbox it won't open and I can't view the messages. After several attempts to open the unviewed E-mails disappear and I receive a message from Outlook Express welcoming me as if I'm a new user. All the folders and files are intact, it's just the unviewed E-mails which disappear. How do I open them or find the files? And, what causes this? Any help would be appreciated. Thanks.