Two windows xp SP2 machines both with outlook 2003 installed (latest updates as well) cannot open or accept tasks from each other. Up until recently we havn't had a problem. However; now when one computer sends a task to another it appears in the inbox, when you click on it you can preview it in the reading pane, but you cannot doubleclick the task to open it and view it. If you hit the accept button in the preview pane nothing happens. Virus scans have been run on both machines and came up negative. Please help!