I have a single Windows Server 2003 box set up as the domain controller on our network. This machine also acts as our fileserver. Until recently, it has always worked with no problems whatsoever. However, a couple days ago, one of the users did a hard reset of the server, and corrupted some files in the process. Because of this, I had to do a repair (in-place) re-install of Windows. I got everything up and running just fine. Users are able to log into the domain, and everyone has full access to their Exchange e-mail (also on the same server). However, we are unable to access any of our network shares. Whenever I type the name of a network share to access, Windows comes back with a username and password prompt, even though I am logged into my machine as a domain administrator. I try the usernames/passwords of several different users (other domain admins), and nothing works. I have checked both the share permissions and NTFS permissions and can't find any problem there (they are the same as when they worked before the re-install). I am even unable to access the shares while logged in locally to the server. (I can access the folders through the filesystem, but not through the network share name). Because of this, group policy is also not able to process, because none of the machines can read the SYSVOL share over the network. Any help anyone could offer would be greatly appreciated.