[Zope] - Proxying and authorization

I now serve a zope site (under development) through two proxies, no less, but it works quite nicely... Except for the authorization part. I have to enter my name and password for each of the three servers, which is quite annoying. So... Is there a way of making the browser understand that it should try the same authorization at all three places? Or maybe Zope could use relative URLs so that it would never notice anything other than the "top" proxy? Is there another way of solving the problem? -- Magnus Lie Hetland www.pvv.org/arcadia <arcadia@pvv.org>