Just got a new 2011 13" Macbook Air i5 which is showing some bizarre behavior at boot time.

i wanted a more or less clean system so i did most of my setup from a temp account before using migration assistant to pull over my user files. after the migration was over i deleted the temp acct and finished a
setting up.

Now when i boot:
1. a bootlogin screen appears -- with the old temp account but not my account. I log into the temp acct.
2. After a few seconds the boot tone sounds again, and step 1 occurs again.
3. this timeafter logging into the temp acct again I get a third login screen, this time withmy login but not the temp acct.

i have verified that the temp acct and all ofits files have been deleted.

Any ideas?