cant login after upgrade
i bought a second hand macbook last week and it came with the install dvd for tiger, my mum had the upgrade disk for leopard so i tried installing, this took several attempts as it kept on freezing. once i had succesfully installed it i restarted and now it asks for a username and password niether of which i have set, i have tried reseting the password from the install cd but it still does not work.
MacBook, Mac OS X (10.5)