We have some shares on s s08 server and the server keeps erroring and i get this in even viewer

source NfsClnt ID 16397

Code:
Windows(R) Lightweight Directory Access Protocol (LDAP) failed a request to connect to Active Directory Domain Services(R) for Windows user <PAI-SR-WEBSVR\Administrator>.

  Without the corresponding UNIX identity of the Windows user, the user cannot access Network File System (NFS) shared resources.

  Verify that the Windows user is in Active Directory Domain Services and has access permissions

the whole place is going crazy at the mo my collegues are messing with Lego NXTs as some random uni guy is in for tech/sci. cctv has gone haywire. my dog has run off. and have no money for a beer till next wed!!!!

pls help