Thank you for the response, and the informative reading. However, I don't
think I've found my solution.
1. My rules are set up correctly.
2. I am not using accounts with multiple aliases.
3. Profile recreation is not an issue.
4. I don't do any sychronization.
I am not receiving multiple copies at one time. As I said, some of the
duplicates are for emails I received several days ago, and I have done many
Send/Receive operations in the meantime. It's a "sometimes" problem.
The virus scanner/firewall possibility is my best bet. I use Trend
PC-cillin. I disabled the email scans almost as soon as I installed Office
2007. However, almost every time I exit Outlook, I get one of those "Trend
Micro Anti-Spam for Outlook has encountered a problem..." messages. That
indicates to me that the Trend software is still running. I will research
Meanwhile, I will entertain any other helpful suggestions.