Many times when I try to quit my Mail program it closes out but doesn't actually quit (the little blue light is under the icon on the dock). I try to right click on it and hit quit but quit is lightened and I am unable to quit. This happens quite often. Also, if I ever try to shutdown/restart without closing all my programs, the mail program causes my computer to hang and it won't shut down. Does anyone have this problem or know how to fix it? Thanks.