I have a Windows 2003 Server in a domain environment. I just installed this server about two weeks ago. All was fine until today. I was unable to access anything on the server from my desktop. I tried to log directly into the server, and was given an error message stating that my username or password was incorrect (i'm POSITIVE it was the right user name and password). I rebooted the server and was able to log in fine. I looked in Event Manager and saw an event ID 1054 with the following message, "Windows cannot obtain the domain controller name for your computer network." I also got a message telling me something to the effect of "access denied...cannot access memory locator" or something like that. I've done some research on this, but I'm uncertain how to resolve. I can reboot the server and all is fine for about an hour or two, but then my desktops lose connectivity to the server again. Anyone seen this?