Not sure why, but I can't access my ZServer to manage my website.

I get the 3 panes - top, left and right, but I get the "Page cannot be displayed. Cannot find server or DNS Error
Internet Explorer" error.  If I hit refresh a number of times
the top pane will partially load and show that I'm logged in but I also get the red x for the gif image that points to zope.org
on the left side.

Needless to say I can't acccess my home page through http either.  I assume this is because ZServer is not functioning correctly.

I can ping the address as well as the URL behind the firewall.

Any ideas?

Thanks.
Todd