I am unable to map drives from a Windows 2003 server to Windows XP and Windows 2000 computers using a login with a blank password. I can map the drives to Windows 98 machines using a login with a blank password. When I use a login with a password I can map the drives on XP and 2000. I can map drives from a Windows NT server to Windows XP and Windows 2000 computers with blank passwords. I even disabled blank password restrictions by using a policy on a Windows XP machine and it still would not map with a blank password. We really need to be able to map using a login with blank passwords. Does anyone know the solution?