I just restored my 13" Macbook Pro from a Time Machine Backup that was created on a 15" Macbook Pro via Migration Assistant, and I have been experiencing some weird problems. The weirdest thing is that I cannot change my account from Standard to Administrator, even if I am logged into the root account. When I authenticate and click on the check box that says "Allow User to Administer This Computer", the box goes blank again and a box shows up telling me a restart is needed. Does anyone known what the problem is? Thanks.