I just installed a new application for my Macbook Pro but when I clicked to use it. It asked for my password. I typed my password but it says it's wrong. I am using this computer right now and now I want to change my password but everytime I try to type my password it says it's wrong. How can I change my password while I am on ? I don't want to use the OS X CD to start again bec. I just moved from Macbook to Macbook Pro and I have a lot of datas here. I must've been so tired that I forgot my password.. ugh.. pls. help me what to do.