How do you set a default gamer profile on XBOX 360 after transferring from another XBOX 360?

My old XBOX 360 had DVD failure and I was forced to transfer all my gamer profiles and saved games to a new one. Now, my new roommate created a profile and it makes it the default profile - I have another one that I want to set to auto sign in.How do you set a default gamer profile on XBOX 360 after transferring from another XBOX 360?Go into every profile on your Xbox 360 and Disable auto-login, except for the one you want to make default. Enable it for that one.