My office users NT4WS & W95/98 laptops join to other offices’ NT doamin because business trip. After they come back and try to rejoin back to the domain, the system always show user name or password error. But I know they are correct. I did try remove their computer names from the domain and move them to workgroup and rejoin to the domain. It still doesn’t work. Is anyone know what is the solution without reformat the HD? Thanks.