I'm not sure what happened here. I went to log in to my iMac and its not accepting my password. This happened this morning. Prior to that I have logged in 100s of times!! Also, my master password is not working. I checked keyboard and ensure that is functioning. I typed the password into the username field just to make sure I did not have a stuck key or something. I'm completely dumbfounded or just dumb. How can I recover? I have so much stuff on my machine. Most of my photos and Itunes are backed up but I have other stuff. Any guidnace is greatly appreciated. Thanks....