there are 3 computers connected to the LAN, computers 1,2 and 3. computer 1 can access computer 2 and 3's files, and computer 2 and 3 can access each others files. problem is that computers 2 and 3 cannot access computer 1 file getting the error: " 'computer' 1 is not accessible. You might not have permission to use thise network resource. Contact the administrator of this server to find out if you have access permissions." Logon failure: the user has not been granted the requested logon type at this computer. ???????????