I have one account on my laptop running Lion that just started "mixing up" the emails. When I highlight the email on the left panel, another one shows up in the detail window on the right. It is only one email account on that mac that is doing it. When I check the same account on my iPhone or iPad, it is fine. When I check on-line, it is fine. So it must be the way it is stored on my mac. Is there a way to "reset" or "re-index" the mail file? Thanks in advance.