so new to mac!! i just got a macbook pro, went thru the setup to get started but was unsure about the registration so i did not do it. (thought i needed security to put any personal info on it). got MacBook FOR DUMMIES and realise it is very important to register, is there a way i can go back and do this? sorry if this was posted somewhere else but i couldn't find anything on it. thanks for any help in advance.