I hope this hasn't been covered too many times, I hate posting when something has already been covered. I did a couple searches, and came up dry. I have mail open, and quit before I shutdown. Then when I push the shutdown under the apple menu, my mail app opens automatically and a logout error occurs that says mail has interuppted shutdown. I have tried this with both automatic login of mail on and off in my user account. The only way I can shutdown is by manually pushing the powerbutton on my machine. Anyone else have this problem? im running tiger 10.4.2 Thanks!