Thanks in advance for any help. I am a new Macbook Pro user. Had it about 1 month now. Any way I was on I photo and playing around and downloaded a picture from my digatal camera. I then clicked the mail button in the I photo program (I have not set up mail yet I have comcast mail) just to see what would happen and also to see if I could send it using my comcast sign on . Well I then thought I cancelled that. When I try to Shut down my Mac it will not let me or course because it still has the mail program open. When I try to shut down mail it will not let me and does not even highlight that option. Before I call Apple support I thought someone here might know a fix to my stupid mistake. Forgive me I am learning right now