I have searched twice recently for two different email addresses among my messages and have found 3 messages in one search and 4 messages in the other. I tried to open them as a list so that I could see their locations and move them to a different folder, but only 1 of 3 messages was displayed in one search and none of the 4 messages was displayed in another. In both searches, a 'must contain' constraint was used to restrict the displayed messages to one person or folder. I don't recall that this problem occurred during other searches when a constraint wasn't used, but I also didn't count to see whether as many messages that were found were also displayed. Thanks for your help!