Can't log in from behind proxy

[Chuma]

At work I am using IE6 and am accessing the web through a proxy server.

For some reason I can't log in even if enable all cookies.

I have tried Netscape 4.7, Mozilla and even Lynx and it still doesn't seem to work which is dissapointing as the particpants in the forums seem to be much nicer than those on the newsgroups.

Thanks.