Changing my Password

[nachoman]

A secret to hacking into computers at work: IT departments usually make employees change passwords about every 90 days, and rules dictate they include weird characters and not be easy to remember words or numbers. So, most employees take a Post-It® note, write their password, and stick it under their keyboard or in the top drawer of their desk. So, if you need to "hack" someone's computer, just look under their keyboard or in their desk drawer

With your problem - make absolutely double sure you don't have things like caps lock on, or aren't forgetting to capitalize a letter. I don't know how many times I got locked out because I forgot the first letter of my password was capital