I have just installed a new NT server using the same users as the previous machine. The new one runs SQL, Exchange and Proxy which the old one didn't. When I try to use Microsoft Networking to log on I am getting an intermittent problem where the egg timer appears and when you press ctl-alt-delete it says that MPREXE.EXE is not responding. Does anyone know what this is all about, is happens on both Win 95 and 98 workstations.