Hi, I bought 2 imacs (recent models) from a guy, but they have passwords. I bought a used dell usb keyboard, I was able to reset the password on one using the command prompt and everything went fine. Then I tried to do it on the other one and when I get to the point where i have to type in the text, nothing that I am typing shows up, almost as if it is frozen in the command prompt.. Any ideas on what the problem could be , could it be because it is not an apple keyboard, i find that wierd because it worked on one of them, and the mac is obviously seeing the keyboard because I get to the command prompt using the windows button +s at the same time. Any help would be appreciated.