[horde] Problems resolving localhost on Horde2

[Marco Maiani]

I've installed Horde2, Imp3, turba and kronolith for Debian and I've 
configured them using  "dpkg-reconfigure -plow" for every package.

The test.php for Horde2 and Imp are ok but when I try to open the web 
pages the program doesn't resolve 'localhost' to my server address 
(panoramix.comune.scandicci.fi.it). I can't find in what file I need to 
set it.

Thanks

Marco