MM,
General emails coming to my BB from multiple accounts have been showing up as "read" when I haven't opened them yet. Just for clarification, this is different than emails opening up when I remove my BB from the belt holster shortly after they arrive.
I believe jbonnet03 may have clarified the issue. I shut down Outlook and all emails that have arrived since then were marked as "unread."
BTW: thanks for all your help on the Zumo GPS forum!!!