This is officially the biggest problem I've ever encountered with a computer... I just migrated from a 2009 iMac to a brand new iMac a few days ago and aside from some broken aliases, everything seemed to be fine. Went to wake my computer up from sleep a few minutes ago and it asked for my password like it does everytime. I punched it in. Rejected it. Figured I might of mistyped it so I entered it again. Rejected again. Entered it again making absolutely sure it was correct. Still rejected. Just to make sure my wireless keyboard wasn't going awry and sending wrong signals, I plugged in a corded Apple keyboard and entered my password that way. Same thing... still rejected. This is BAD! I know what my password is. It's the same password I've used and typed into my computer for the last decade or so. I'm the only user of this computer, no one else knows my password and so no one could of changed it and I absolutely did not change it either. What in the heck is going on? Has anyone ever heard of this happening? Is there any course of action I can take? Has anyone ever heard of a computer not accepting an accurate password?