Not sure if this is the right forum, but can't see anything better!

I've installed linux OES SP2 on a machine as a test for NetStorage. When I
use the Firefox browser, I can authenticate to it and I get my pseudo-mapped
drives and access to the fileserver.

When I use IE6 (latest security updates etc), I get the authentication
dialog box, but when I enter anything into it it just reappears as if
failing to authenticate. I've tried unqualified usernames, fully-qualified,
dot-separated, comma-separated but nada.

Any suggestions please?