OK, here's a really strange problem: We have a single W2K server/domain controller that was running great until a couple of weeks ago. Our network consists of about 14 PC's evenly divided between W2k and Win98, all using static IP addresses. Started having issues with both W2k and Win98 clients getting logon denied messages. I discovered that the Local Group Policy database on the server was corrupt, so I rebuilt it using instructions from MSKBA #278316. Now the server boots up noticably faster, and the W2k clients can log on again after I re-register their machine names. But the Win98 clients still get "The domain password you supplied is not correct, or access to your logon server has been denied" when trying to log onto the domain - unless the server has been rebooted and is just sitting at the login prompt. Everyone can login in and access the server/domain unless I actually log onto the server as Administrator, in which case the Win98 machines get the above error message. So I'm thinking this is some kind of Local/Domain policy issue but I can't make any headway on it. I've tried deleteing/resetting machine accounts in AD, and registry mods on the Win98 clients to disable direct hosting and SMB signing. No luck yet. Any help greatly appreciated.