[Samba] IP address versus Hostname

[Michael Vega]

I am using: SuSE 8 and Samba 3 and kernel 2.4.  SAMBA
has joined the Windows ADS environment correctly.  But
here is my issue.  If I  enter the HostName of the
SAMBA server from a Windows 2000 PC I get the Incorret
Password or Unknown User pop up but if I enter the IP
address, I have no issue I can see the SAMBA shares. 
I have googled around and have  seen this question
posted but no resolution, please advice.  Thank you.

Michael