I haven't seen this before. Recently, I brought out an older P4 machine (IBM Netvista 8319), and decided to install Vista on it. Everything went well until the final reboot. Instead of going to the desktop, I first got a screen asking if I wanted to run Windows in Safe Mode or Windows in Normal Mode, etc. I chose Normal and up comes the setup screen asking for a User name (again). I entered my original User name, but got a message saying it was already in use (or something to that effect). So, I chose a different User name and password, and the installation completed. I ended up with 2 administrator accounts, one in each of the names. I have installed Vista on a good many new computers, and never found this problem. Can anyone tell me why this particular setup wants me to enter a second User name and Password? I can't see where the hardware would be doing it. There's nothing but your standard components involved. Thanks.