Hi people, i could reall use some help here. . .

My windows xp pro laptop is part of a domain using windows server 2003.

I was at my fathers and for the sake of experimenting we were attempting to
setup a mini home network using an old hub we found. So after failing to
recieve a signal from his pc to my laptop. . . I was looking about in the
system window in control panel. I spotted a network identifier button and me
being me thought it might identify the home network and bob's your uncle . .
the computer would talk to each other. So i pressed the button.

BIG MISTAKE . . it did something then a window came up prompting me to
re-started for the setting to take effect. So i did this. Upon rebooting my
laptop i now can't login to windows at all using the any login i can remember
including the administrator password. It think its wiped all the domain login
settings and i don't have a scooby what to do about it.

Please help, i have no clue what happened or how to fix it. any advice would
be greatly appreciated.

Thank you.