Outlook is constantly freezing when either plugged into the domain with a LAN line or working offline, while offline mode cached is turned on. Only happening on one of our laptops within the company. Laptop is dual core and 4 GB of RAM. When user tries to send emails they will appear in his outbox but never be sent out, then outlook will hang and freeze. The user then looses all outgoing emails that were in the outbox and they never get sent out. Any thoughts?