File sharing problems with 2003

Using file sharing on a 2003 server I have set up a share volume. But if I browse through the network and double-click on the server name it tells me that I do not have the necessary rights. I have gone in and even elevated my user name to have full control over that share through the permissions and security tabs within properties. Any thoughts? this server is only joined to my NT 4.0 domain, it is not acting as a PDC or BDC.
File sharing is checked under the NIC properties.

Thanks!
D.