Epicor 9 Educational Licensing

In E9, Epicor has added the capability to download your Embedded Education
License directly from EpicWeb.

When we try to do it, E9 throws an exception indicating it needs a username
and password from our proxy server. We can access EpicWeb from any machine
from IE without providing authentication to the proxy. We use Microsoft's
ISA 2000 built into our SBS 2003. Has anyone else successfully downloaded
the license file while being behind an authenticating proxy server?

Thanks!

Mark W.