We have a Windows NT 4 SP6 BDC that out of the blue decided that it no longer wanted to boot properly. The machine boots up to the default NT background but then never displays a logon prompt. It just hangs there. In that state you can't logon, you can't ping... nothing. Has anyone seen this and/or fixed this without blowing away the server. It has a SQL database and user files on it. Any help is much appreciated.