I have a mixed Win98/Win2000 network accessing a Win2000 server acting as the PDC. Win98 clients are having problems logging into the domain and have name resolution issues. The Win2000 clients are having no problems. In most cases the Win98 user enters the correct password but after a long delay receives the message of incorrect password. Ctrl-Alt-Del will display the message "mprexe (not responding)". I have tried a number of the fixes suggested for mprexe problems and none of them work, or at least not for long. An interseting work around is that if the user enters an incorrect password when they first attempt to logon, the second logon attempt works fine. This was not a problem before Thanksgiving, but has been ever since.