can't stop iwp_auth.html from automatically redirects to iwp_home.html

I am using server adv 8.0v4 on a Win2K3 server.

Users with IE6 or IE7 are not able to login, because iwp_auth.html is redirecting to iwp_home.html.

Because they didn't get the login page, they end up with a iwp_home.html with just a blue bar on top and no db's listed for them.

I tried installing and using Firefox instead, and that works.

I want to fix this issue in IE though. Hopefully someone has seen this behavior before and knows what to change either on the clients browser or the web publishing settings.