My password is suddenly not being accepted when I log in,
When I shut down my computer and then fired it up again I got a grey screen with the grey apple. Underneath that are two boxes, one saying 'name' and the other saying 'password'. Honestly I don't remember setting a name up and when I type in my only and accurate password the box shakes a little and rejects it. The only other things below those are the 'sleep, restart and shutdown' buttons. Does anyone know what happened?
MacBook Pro (15-inch Early 2011)