[horde] Login problems

[Roger Howorth]

Hi folks,

I've just installed Horde and imp but am having problems getting login & 
authentication set-up correctly. I'm running Gentoo Linux with apache 2, 
and downloaded the latest build tars from a Horde mirror and installed 
them by hand.

Problems:
1) From Firefox browser running on a Windows client, accessing the main 
horde URL causes the client to redirect to www.horde.org - no horde 
framework is ever displayed.
2) From Safari on Mac OS X, when a user presses the login button the 
browser URL changes to use localhost as the server name. As horde is not 
running locally on the client PC the login always fails. In other 
respects the horde framework appears to be working correctly.
3) From IE/Windows, accessing the horde login page produces a Windows 
error page reporting "The page cannot be displayed" due to cannot find 
server or DNS error.

Any clues or pointers to a solution would be gratefully received. Thanks.

-Roger.