ghost access to a share

I have created a ghost boot disk to log on to a server to copy and pull down images. The network portion works. I do get the following error “You were logged on, but you have not been validated by a server. Therefore, y9ou may not have persmissions to some network resources.”
the event log on the server shows a successful logon. The client maps to the share but won’t let me in it.

Any ideas? Help would be greatly appreciated.

-matt