I'm doubting that you mean "new PowerBook" since there is no such thing! Possibly it is a used PowerBook that's new to you or possibly you mean you have bought a new MacBook - the latest Apple notebook range.
Anyway I only raise this to establish whether not the Mac in question was being started up for the first time when you used Migration Assistant or if you had been using it for a while and gathered quite a lot of additional files and Applications. Ideally you would use Migration Assistant with a brand new or at least "reset" Mac because unfortunately M.A. always makes a second account for the transferred items. I know this only too well as I have just used it to transfer items from my wife's old Toshiba PC to a new MacBook Pro. It was no real problem since I then just deleted the original account which had received no personalisation. If this isn't the situation you are in then all I can suggest is that you transfer items you wish to keep to your Shared Folder then move them from there to the new account you created.
Beside the detail that there cannot be ‘a new powerbook’, perhaps ‘new to you’, let us note that migration assistant creates indeed a new account beside the basic one after installation. You cannot basically merge account directly, in the sense used in ‘merging data for iPhone and mac’, for example. If the basic account does not contain any info, and your new account created by migration assistant is an administrative account, then you cant delete the initial account, after transfering data, if any.
You do not mention what system you use. If indeed a PowerBook, then probably 10.5.8 at the most. If a new mac, and you use the term powerbook inappropriately, then let us know which one.
Mea Culpa! This discussion appears to have run its course but just in case it turns up in someone's search.......
Of course the Mac in question can't have been a PowerBook because the ability to use Migration Assistant with a PC as opposed to another Mac only came in with Lion. If I knew this I had forgotten it by the time I replied.
The record is now set straight.
I was reading your response to their person above, and am hoping you can clarify something for me. I have just swapped from PC to MAC and it seems that migration assistant trnasferred what I wanted to my MBP but by creating a new user account. You mentioned above that because the original user account was not personalized on your Mac, you just deleted that account and presumably used the account that was created when you transferred your data.
Before I do that I wanted to see if you could confirm something for me. The account created as a result of the new MBP indicates "allow user to reset password using apple id" under the login options. However, the account created during use of migration assistant (which has my data that I want on the MBP) does not allow me to select that option. If I delete the original user account, will the one I'm left with (that has my transferred data) then give me that option to select "allow user to reset password using apple id"?
I appreciate your help!
MA creates a new user account to which data are transferred from another mac or a PC if used AFTER the basic settings finalizing a new OS installation or at the first boot with a new mac. That is why you have 2 accounts: one crated by default while setting up a new mac and the 2nd one after migrating data using MA. The first has admin privileges, the 2nd does not.
You may assign admin privileges to the 2nd account, as a result of migrating data from the PC, then delete the initial default account. Be sure you know what to do, and that the initial default account does not contain sensitive data you may lose by deleting it. Perhaps it would be better to let the 2 accounts cohabitate for some time and, if you find that the initial default acc is indeed useless, delete it some time later. Begin by assigining admin privileges to the account created by MA, and make it the default acc.