smbmount

I am trying to use smbmount to attach to my win 2k server from my linux 
workstation. I type smbmount //servername/share /2kmount U username I 
xxx.xxx.xxx.xxx and hit return. I get the following error:

smbmnt must be installed suid root for direct user mounts (500,500)

If I try the same command as root, I get this error:

session setup failed: ERRDOS - ERRnoaccess (Access denied)
SMB connection failed.

What do I need to changed to access the shares on the 2k box?

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Regards,

Shane