Outlook has begun trying to send three phantom messages during send-and-receive, which don't exist in the outbox. I always cancel it, because it seems likely to be some kind of malware, but neither AVG or Avast free antivirus programs have been able to capture it. Does anyone recognize this symptom, or know what the cause might be? I'm using Outlook Office Basic Edition 2003 on Windows XP Home. Thanks in advance for any help!