I have a macbook with leopard on it. I'm not admin, because some people in school took away our admin rights for a few days ago. I managed to change it back to a few people in class, using single user mode. But when I tried it on my own mac, i couldnt get into singe user mode. I tried several times, and i tried all the other startup key commands. None were working, except option key (to boot into windows). But i had to enter a password to get to the option were i could enter in windows. Does anyone know what i could do to fix this problem? i wonder if they have activated the open firmware password, but i don't know how to delete it.