I have W2K server with about 10 machines connected to it. After log on at a workstation, the domain can be seen and browsed in Network Neighborhood. However after some time (seemingly overnight), when Network Neighborhood is opened, no domain is visible for browsing; the window is completely blank. This seems to happen most often with W98 machines but also happens to W2K workstations. Logging off and back on will return things to normal. Even when the domain is not visible in Network Neighborhood window, domain resources are still accessible via, e.g., C:>\\office1\c\, e-mail can be sent and received, and the domain controller responds to pinging. So what can cause this disappearance in Network Neighborhood? I am puzzled.